Physical Chemistry
Physical Chemistry
2nd Edition
ISBN: 9781133958437
Author: Ball, David W. (david Warren), BAER, Tomas
Publisher: Wadsworth Cengage Learning,
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Chapter 18, Problem 18.58E
Interpretation Introduction

Interpretation:

The value of qrot at 298K term by term is to be calculated. The number of term at which the changed qrot is negligible is to be stated. The repetition of the calculation at 1000K is to be calculated.

Concept introduction:

The energy levels inside a molecules that represents the various possible methods by which a part of a molecule revolves around the bond present between the atoms is known as rotational energy level.

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(4) Determine the vibrational contribution to Cy for one mole of HCN, where ₁ = 2041 cm-¹, v₂ = 712 cm ¹(doubly degenerate), and 3 = 3369 cm¹ at T=298 K, 500 K and T=1000 K.
Calculate the relative populations of a spherical rotor at 298 K in the levels with J = 0 and J = 5, given that ᷉  B = 2.71 cm−1.
Calculate the vibrational contribution (q) of N₂(g) in the standard state (298 K and 101325 Pa). The rotational constant is B= 1.9987 cm-1 and the vibrational wavenumber is = 2358 cm-1.
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