Q78 · CSIR-NET Chemistry, June 2019

Paper: CSIR-NET June 2019 · Subject: Physical Chemistry · Chapter: Statistical Thermodynamics · Topic: Partition Functions · Marks: 2 · Difficulty: Medium

The rotational partition function is expected to be the smallest for the molecule, among the following

(a)$\mathrm{H}_{2}$

(b)$\mathrm{Li}_{2}$

(c)$\mathrm{N}_{2}$

(d)$\mathrm{F}_{2}$

Answer

Answer: A ✓ checked by 4AB · confidence high

Explanation

q_rot = kT/(σhcB) is smallest for the largest B (smallest moment of inertia): H₂.

Study loop for Statistical Thermodynamics