GKFix MCQ Question

What is the molar specific heat at constant volume (Cv) for monatomic gas?

• A. 8.31 J mol⁻¹ K⁻¹
• B. 12.465 J mol⁻¹ K⁻¹
• C. 20.775 J mol⁻¹ K⁻¹
• D. 29.085 J mol⁻¹ K⁻¹