Based on the principle of equipartition of energy, the molar heat capacity of CO₂ at constant volume Cv,m is: · ABC26PH0714

Subject: Physical Chemistry · Chapter: Gaseous State · Topic: Gaseous State – General · Exam: JAM 2001-2022 · Marks: 2 · Difficulty: Medium

Based on the principle of equipartition of energy, the molar heat capacity of $\mathrm{CO_2}$ at constant volume $\mathrm{C_{v,m}}$ is:

(a)3.5 R

(b)6R

(c)6.5 R

(d)9R

Answer

Answer: C ✓ checked by 4AB · confidence high

The source book printed no answer; this one was worked out and checked — see the explanation.

Explanation

CO₂ is linear: translation 3/2 R + rotation R + 4 vibrational modes × R = 6.5R (classical equipartition).

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