Physical Chemistry
Physical Chemistry
2nd Edition
ISBN: 9781285969770
Author: Ball
Publisher: Cengage
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Chapter 18, Problem 18.21E
Interpretation Introduction

Interpretation:

The values of qvib for H2S at 310K is to be determined.

Concept introduction:

A molecule is made up of atoms that are bonded together by covalent bonds. These bonds undergo a to and fro movement to vibrate. This vibration of the molecule contributes to the overall partition function of the system. The vibrational partition function of the polyatomic molecule is represented as,

qvib=i=13N611ehvi/kT

Where,

k represents the Boltzmann constant with value 1.381×1023J/K.

T represents the temperature (K).

h represents planck’s constant with a value 6.626×1034Js.

v represents the ith vibrational frequency.

N represents the number of atoms present in the molecule.

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