Molecular Collision Processes in Gases and at Surfaces

Download Molecular Collision Processes in Gases and at Surfaces PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (227 download)

DOWNLOAD NOW!


Book Synopsis Molecular Collision Processes in Gases and at Surfaces by : John B. Fenn

Download or read book Molecular Collision Processes in Gases and at Surfaces written by John B. Fenn and published by . This book was released on 1987 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results have been obtained by Fourier Transform Infrared Emission Spectrometry (FTIES) to determine the internal energy distribution in molecules whose states are consequent to three kinds of inelastic and/or reactive collision processes. (1) Free Jet Expansion. Gas that is vibrationally excited in the source by heating, corona discharge or chemical reaction is interrogated by FTIES after free jet expansion into vacuum. The observed marked departures from equilibrium give insight on RR, RT, RV and VV exchanges where R, T and V refer to rotational, vibrational and translational energy. (2) Inelastic Scattering from Surfaces. When free jets of CO2, CO2, N2O, and OCS are incident on a hot Pt surface the reflected molecule have enough vibrational excitation to be analyzed by FTIES. Vibrational and Rotational accommodation coefficients have been determined for these species over a range of surface temperatures. (3) Reactive Scattering from Surfaces. FTIES analysis has been carried out on nascent carbon dioxide molecules formed by the catalytic oxidation of carbon monoxide molecules incident on a Pt surface bathed in oxygen. Results indicated vibrational and rotational temperatures much higher than surface temperatures.

Molecular Collision Processes in Cases and at Surfaces

Download Molecular Collision Processes in Cases and at Surfaces PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (227 download)

DOWNLOAD NOW!


Book Synopsis Molecular Collision Processes in Cases and at Surfaces by : John B. Fenn

Download or read book Molecular Collision Processes in Cases and at Surfaces written by John B. Fenn and published by . This book was released on 1985 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our research centers on the use of Fourier Transform Infrared Spectrometry (FTIS) to determine the distribution of rotational and vibrational energies in molecules. Our particular concern is with the effects of gas-gas and gas-surface collisions on these internal states. By studying the changes in energy and structure that occur during such collisions we aim to elucidate the kinetics and dynamics of the reactive and inelastic scattering events that play leading roles in many important processes of both technological and scientific interest. The collision processes under study are brought about with the aid of supersonic free jets expanding into vacuum from small sonic orifices or nozzles. (JES).

Collision Processes in Gases

Download Collision Processes in Gases PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (45 download)

DOWNLOAD NOW!


Book Synopsis Collision Processes in Gases by : Frederick Latham Arnot

Download or read book Collision Processes in Gases written by Frederick Latham Arnot and published by . This book was released on 1950 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is based on a course of lectures which I gave to advanced students in physics and chemistry in the University of St. Andrews during the winter of 1931-1932. Its main object is to assist those who are about to begin experimental research on problems involving the collision of electrons, photons and positive ions with atoms and molecules of a gas at low pressures"--Page v.

Atom - Molecule Collision Theory

Download Atom - Molecule Collision Theory PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461329132
Total Pages : 785 pages
Book Rating : 4.4/5 (613 download)

DOWNLOAD NOW!


Book Synopsis Atom - Molecule Collision Theory by : Richard Barry Bernstein

Download or read book Atom - Molecule Collision Theory written by Richard Barry Bernstein and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 785 pages. Available in PDF, EPUB and Kindle. Book excerpt: The broad field of molecular collisions is one of considerable current interest, one in which there is a great deal of research activity, both experi mental and theoretical. This is probably because elastic, inelastic, and reactive intermolecular collisions are of central importance in many of the fundamental processes of chemistry and physics. One small area of this field, namely atom-molecule collisions, is now beginning to be "understood" from first principles. Although the more general subject of the collisions of polyatomic molecules is of great im portance and intrinsic interest, it is still too complex from the viewpoint of theoretical understanding. However, for atoms and simple molecules the essential theory is well developed, and computational methods are sufficiently advanced that calculations can now be favorably compared with experimental results. This "coming together" of the subject (and, incidentally, of physicists and chemists !), though still in an early stage, signals that the time is ripe for an appraisal and review of the theoretical basis of atom-molecule collisions. It is especially important for the experimentalist in the field to have a working knowledge of the theory and computational methods required to describe the experimentally observable behavior of the system. By now many of the alternative theoretical approaches and computational procedures have been tested and intercompared. More-or-Iess optimal methods for dealing with each aspect are emerging. In many cases working equations, even schematic algorithms, have been developed, with assumptions and caveats delineated.

Collision Processes and Excitation of UV Emission from Planetary Atmospheric Gases

Download Collision Processes and Excitation of UV Emission from Planetary Atmospheric Gases PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 9789056991470
Total Pages : 356 pages
Book Rating : 4.9/5 (914 download)

DOWNLOAD NOW!


Book Synopsis Collision Processes and Excitation of UV Emission from Planetary Atmospheric Gases by : SV Avakyan

Download or read book Collision Processes and Excitation of UV Emission from Planetary Atmospheric Gases written by SV Avakyan and published by CRC Press. This book was released on 1999-01-27 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few decades, the excitation and ionization of atmospheric gases has become an area of intense research. A large amount of data have been accumulated concerning the various elementary processes which occur when photons, electrons and ions collide with atoms and molecules. This scattered information has now been collected in a handbook for the first time, and the authors give a critical analysis of relevant data. This book is a comprehensive and detailed study of the available information and is distinguished by the following outstanding features: the consideration of a large number of atmospheric constituents, including H^O2, H, N^O2, N, O^O2, O, CO, CO^O2, H^O2O, HCl and some hydrocarbons the maximum number of space particles, including magnetospheric particles, are considered as projectiles: photons, electrons, hydrogen atoms, protons and helium ionsthe energy range under study corresponds to the real spectrum of cosmic fluxes, from threshold values for elementary processes up to several thousand keV the recommended values of cross sections, obtained from analysis of the available experimental data, are given in the handbook and their accuracy is estimated. These features make the handbook particularly valuable to specialists in the aeronomy of planets, comets and active perturbations, as well as to experimentalists and theoreticians working in the fields of plasma physics, atomic and molecular physics, physics of the upper atmosphere, chemical physics, optics and spectroscopy.

Dynamics of Molecular Collisions

Download Dynamics of Molecular Collisions PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1475706448
Total Pages : 391 pages
Book Rating : 4.4/5 (757 download)

DOWNLOAD NOW!


Book Synopsis Dynamics of Molecular Collisions by : W. Miller

Download or read book Dynamics of Molecular Collisions written by W. Miller and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activity in any theoretical area is usually stimulated by new experimental techniques and the resulting opportunity of measuring phenomena that were previously inaccessible. Such has been the case in the area under consideration he re beginning about fifteen years aga when the possibility of studying chemical reactions in crossed molecular beams captured the imagination of physical chemists, for one could imagine investigating chemical kinetics at the same level of molecular detail that had previously been possible only in spectroscopic investigations of molecular stucture. This created an interest among chemists in scattering theory, the molecular level description of a bimolecular collision process. Many other new and also powerful experimental techniques have evolved to supplement the molecular be am method, and the resulting wealth of new information about chemical dynamics has generated the present intense activity in molecular collision theory. During the early years when chemists were first becoming acquainted with scattering theory, it was mainly a matter of reading the physics literature because scattering experiments have long been the staple of that field. It was natural to apply the approximations and models that had been developed for nuclear and elementary particle physics, and although some of them were useful in describing molecular collision phenomena, many were not.

Introduction to Atomic and Molecular Collisions

Download Introduction to Atomic and Molecular Collisions PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1468484486
Total Pages : 294 pages
Book Rating : 4.4/5 (684 download)

DOWNLOAD NOW!


Book Synopsis Introduction to Atomic and Molecular Collisions by : R. E. Johnson

Download or read book Introduction to Atomic and Molecular Collisions written by R. E. Johnson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: In working with graduate students in engineering physics at the University of Virginia on research problems in gas kinetics, radiation biology, ion materials interactions, and upper-atmosphere chemistry, it became quite apparent that there was no satisfactory text available to these students on atomic and molecular collisions. For graduate students in physics and quantum chemistry and researchers in atomic and molecular interactions there are a large number of excellent advanced texts. However, for students in applied science, who require some knowledge and understanding of col lision phenomena, such texts are of little use. These students often have some background in modern physics and/or chemistry but lack graduate level course work in quantum mechanics. Such students, however, tend to have a good intuitive grasp of classical mechanics and have been exposed to wave phenomena in some form (e. g. , electricity and magnetism, acoustics, etc. ). Further, their requirements in using collision processes and employing models do not generally include the use of formal scattering theory, a large fraction of the content of many advanced texts. In fact, most researchers who work in the area of atomic and molecular collisions tend to pride themselves on their ability to describe results using simple theoretical models based on classical and semiclassical methods.

Dynamics of Molecular Collisions

Download Dynamics of Molecular Collisions PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461588677
Total Pages : 329 pages
Book Rating : 4.4/5 (615 download)

DOWNLOAD NOW!


Book Synopsis Dynamics of Molecular Collisions by : W. Miller

Download or read book Dynamics of Molecular Collisions written by W. Miller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activity in any theoretical area is usually stimulated by new experimental techniques and the resulting opportunity of measuring phenomena that were previously inaccessible. Such has been the case in the area under consideration here beginning about fifteen years ago when the possibility of studying chemical reactions in crossed molecular beams captured the imagination of physical chemists, for one could imagine investigating chemical kinetics at the same level of molecular detail that had previously been possible only in spectroscopic investigations of molecular stucture. This created an interest among chemists in scattering theory, the molecular level description of a bimolecular collision process. Many other new and also powerful experimental techniques have evolved to supplement the molecular beam method, and the resulting wealth of new information about chemical dynamics has generated the present intense activity in molecular collision theory. During the early years when chemists were first becoming acquainted with scattering theory, it was mainly a matter of reading the physics literature because scattering experiments have long been the staple of that field. It was natural to apply the approximations and models that had been developed for nuclear and elementary particle physics, and although some of them were useful in describing molecular collision phenomena, many were not. The most relevant treatise then available to students was Mott and Massey's classic The Theory of Atomic Collisions, * but, as the title implies, it dealt only sparingly with the special features that arise when at least one of the collision partners is a molecule.

Collision Processes and Excitation of UV Emission from Planetary Atmospheric Gases

Download Collision Processes and Excitation of UV Emission from Planetary Atmospheric Gases PDF Online Free

Author :
Publisher : Routledge
ISBN 13 : 1351459864
Total Pages : 390 pages
Book Rating : 4.3/5 (514 download)

DOWNLOAD NOW!


Book Synopsis Collision Processes and Excitation of UV Emission from Planetary Atmospheric Gases by : SV Avakyan

Download or read book Collision Processes and Excitation of UV Emission from Planetary Atmospheric Gases written by SV Avakyan and published by Routledge. This book was released on 2022-03-11 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few decades, the excitation and ionization of atmospheric gases has become an area of intense research. A large amount of data have been accumulated concerning the various elementary processes which occur when photons, electrons and ions collide with atoms and molecules. This scattered information has now been collected in a handbook for the first time, and the authors give a critical analysis of relevant data. This book is a comprehensive and detailed study of the available information and is distinguished by the following outstanding features: the consideration of a large number of atmospheric constituents, including H^O2, H, N^O2, N, O^O2, O, CO, CO^O2, H^O2O, HCl and some hydrocarbons the maximum number of space particles, including magnetospheric particles, are considered as projectiles: photons, electrons, hydrogen atoms, protons and helium ionsthe energy range under study corresponds to the real spectrum of cosmic fluxes, from threshold values for elementary processes up to several thousand keV the recommended values of cross sections, obtained from analysis of the available experimental data, are given in the handbook and their accuracy is estimated. These features make the handbook particularly valuable to specialists in the aeronomy of planets, comets and active perturbations, as well as to experimentalists and theoreticians working in the fields of plasma physics, atomic and molecular physics, physics of the upper atmosphere, chemical physics, optics and spectroscopy.

Time-of-Flight Spectroscopy of Molecular Structure, Collision Processes, and Gas-Surface Interactions

Download Time-of-Flight Spectroscopy of Molecular Structure, Collision Processes, and Gas-Surface Interactions PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (227 download)

DOWNLOAD NOW!


Book Synopsis Time-of-Flight Spectroscopy of Molecular Structure, Collision Processes, and Gas-Surface Interactions by : Willis E Lamb (Jr)

Download or read book Time-of-Flight Spectroscopy of Molecular Structure, Collision Processes, and Gas-Surface Interactions written by Willis E Lamb (Jr) and published by . This book was released on 1981 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress is reported on research in molecular physics involving electron-bombardment molecular dissociation. The velocity distribution of metastable and ionic fragments are measured using a pulsed electron beam and a time-of-flight technique. Fragments from the hydrogen molecule and its deuterated forms have been investigated using electron energies from 30 to 100 electron-volts. Dissociation channels via particular molecular or molecular ion excited states have been proposed to explain observed features in the velocity spectra. A similar experiment involving hydrogen fragments from the hydrogen halides is also in progress. Preliminary data show several resolved velocity groups indicating the presence of multiple dissociating channels. Experiments using water and hydrogen sulfide molecules are also underway. Finally, we are continuing to develop our ion mass filter which allows us to obtain separate ion velocity distributions for each mass in a situation in which several ion masses are present. (Author).

Interaction of Gases with Surfaces

Download Interaction of Gases with Surfaces PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3540491074
Total Pages : 140 pages
Book Rating : 4.5/5 (44 download)

DOWNLOAD NOW!


Book Synopsis Interaction of Gases with Surfaces by : Alexander V. Bogdanov

Download or read book Interaction of Gases with Surfaces written by Alexander V. Bogdanov and published by Springer Science & Business Media. This book was released on 2008-09-11 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interface phenomena are most fascinating because of the mixing of different scales and the interference of diverse physical processes. This makes it necessary to use different levels of description: microscopic, kinetic, and gas-dynamical. A unified quasiclassical approach is used to answer practical questions dealing with inelastic gas-surface scattering, the kinetics of adsorption layers, the evolution of inhomogeneities and defects at the surface, the Knudsen layer, the development of boundary conditions on the kinetic and gas-dynamical levels, the determination of exchange and slip coefficients, and so on.

Molecular Collision Dynamics

Download Molecular Collision Dynamics PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3642819435
Total Pages : 167 pages
Book Rating : 4.6/5 (428 download)

DOWNLOAD NOW!


Book Synopsis Molecular Collision Dynamics by : J.M. Bowman

Download or read book Molecular Collision Dynamics written by J.M. Bowman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph covers a broad spectrum of topics in the very broad field of gas phase molecular collision dynamics. The Introduction previews each of the four fol lowing topics and attempts to sew them together with a common thread. In addition, a brief review of quantum reactive scattering is given there along with some gen eral remarks which highlight the difficulties in doing quantum reactive scatter ing calculations. The chapters are all written by theoreticians who are, of course, experts in the subjects they have written about. Three chapters, the ones by Secrest, Schatz, and the one by Schinke and Bowman deal with non-reactive atom-molecule scattering. Col lectively, they describe nearly the full breadth of scattering methods in use to day, from fully quantum mechanical to semiclassical and quasiclassical. The chapter by Baer is the only one dealing with quantum reactive scattering with the additional complexity of the coupling of two potential energy surfaces. The one simplifying feature of the treatment is that the reaction is constrained to be collinear. Overall, this monograph is mainly a review of the recent advances in the field of molecular collision dynamics, with, however, a considerable amount of new material. It is hoped that workers and students in the field will find reading the mono graph both enlightening and enjoyable.

Theory of Molecular Collisions

Download Theory of Molecular Collisions PDF Online Free

Author :
Publisher : Royal Society of Chemistry
ISBN 13 : 1849738300
Total Pages : 294 pages
Book Rating : 4.8/5 (497 download)

DOWNLOAD NOW!


Book Synopsis Theory of Molecular Collisions by : Gabriel G. Balint-Kurti

Download or read book Theory of Molecular Collisions written by Gabriel G. Balint-Kurti and published by Royal Society of Chemistry. This book was released on 2015-07-03 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost 100 years have passed since Trautz and Lewis put forward their collision theory of molecular processes. Today, knowledge of molecular collisions forms a key part of predicting and understanding chemical reactions. This book begins by setting out the classical and quantum theories of atom-atom collisions. Experimentally observable aspects of the scattering processes; their relationship to reaction rate constants and the experimental methods used to determine them are described. The quantum mechanical theory of reactive scattering is presented and related to experimental observables. The role of lasers in the measurement and analysis of reactive molecular collisions is also discussed. Written with postgraduates and newcomers to the field in mind, mathematics is kept to a minimum, and readers are guided to appendices and further reading to gain a deeper understanding of the mathematics involved.

Time-offlight Spectroscopy of Molecular Structure, Collision Processes, and Gas-Surface Interactions

Download Time-offlight Spectroscopy of Molecular Structure, Collision Processes, and Gas-Surface Interactions PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (227 download)

DOWNLOAD NOW!


Book Synopsis Time-offlight Spectroscopy of Molecular Structure, Collision Processes, and Gas-Surface Interactions by : Willis E Lamb (Jr)

Download or read book Time-offlight Spectroscopy of Molecular Structure, Collision Processes, and Gas-Surface Interactions written by Willis E Lamb (Jr) and published by . This book was released on 1980 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in molecular physics research using time-of-flight techniques to measure velocity distributions of fragments from dissociating molecules is reported. Electron bombardment at energies between 20 and 100 eV was used to dissociate the molecules, and only fragments with kinetic energies greater than about 1 eV were detected. Both metastable hydrogen atoms and one-, two-, and three-atom hydrogenic charged fragments were detected. Special selective detectors were designed and built for metastable hydrogen atoms as well as a mass filter for identifying the mass of ionic fragments. A large portion of this work was done using the hydrogen molecule and its deuterated forms; however, heavier molecules such as methane, ethane, methanol, and ethanol, were also studied. (Author).

Bimolecular Collisions

Download Bimolecular Collisions PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 444 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Bimolecular Collisions by : M. N. R. Ashfold

Download or read book Bimolecular Collisions written by M. N. R. Ashfold and published by . This book was released on 1989 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to provide an authoritative and timely review of advances in the field of gas-phase photochemistry and kinetics, this volume contains a collection of papers on biomolecular collisions. Contributors discuss collision processes, reactive processes and association reactions.

Atomic and Molecular Collision Theory

Download Atomic and Molecular Collision Theory PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461333121
Total Pages : 508 pages
Book Rating : 4.4/5 (613 download)

DOWNLOAD NOW!


Book Synopsis Atomic and Molecular Collision Theory by : Franco A. Gianturco

Download or read book Atomic and Molecular Collision Theory written by Franco A. Gianturco and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until recently, the field of atomic and molecular collisions was left to a handful of practitioners who essentially explored it as a branch of atomic physics and gathered their experimental re sults mainly from spectroscopy measurements in bulk. But in the past ten years or so, all of this has dramatically changed, and we are now witnessing the rapid growth of a large body of research that encompasses the simplest atoms as well as the largest mole cules, that looks at a wide variety of phenomena well outside purely spectroscopic observation, and that finds applications in an unexpectedly broad range of physico-chemical and physical pro cesses. The latter are in turn surprisingly close to very important sectors of applied research, such as the modeling of molecular lasers, the study of isotope separation techniques, and the energy losses in confined plasmas, to mention just a few of them. As a consequence of this healthy state of affairs, greatly diversified research pathways have developed; however, their specialized problems are increasingly at risk of being viewed in isolation, although they are part of a major and extended branch of physics or chemistry. This is particularly true when it comes to the theory of this work -- where well-established methods and models of one subfield are practically unknown to researchers in other subfields -- and, consequently, the danger of wasteful duplication arising is quite real.

Two Studies in Molecular Collision Processes

Download Two Studies in Molecular Collision Processes PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 380 pages
Book Rating : 4.:/5 (494 download)

DOWNLOAD NOW!


Book Synopsis Two Studies in Molecular Collision Processes by : Charles Cantrell Rankin

Download or read book Two Studies in Molecular Collision Processes written by Charles Cantrell Rankin and published by . This book was released on 1968 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: