Ozone (O3) in the stratosphere absorbs the harmful radiation from the sun by undergoing decomposition: O3->O+O2. (A) Calculare the delta H degrees for this process. (B) Calculate the maximum wavelength of photons in (nm) that possesses the energy to cause the decomposition of ozone photochemically.

Ozone (O3) in the stratosphere absorbs the harmful radiation from the sun by undergoing decomposition: O3->O+O2. (A) Calculare the delta H degrees for this process. (B) Calculate the maximum wavelength of photons in (nm) that possesses the energy to cause the decomposition of ozone photochemically.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter20: Molecular Spectroscopy And Photochemistry

Section: Chapter Questions

Problem 49P

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Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.

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