Question

What will be the molar specific heat at constant volume of an ideal gas consisting of rigid diatomic molecules?

• A. $\frac{3}{2}R$
• B. $\frac{5}{2}R$
• C. R
• D. 3R

Answer 1

Answer: (B)

f = 5 for diatomic gas $\therefore C_v=\frac{f}{2}R\Rightarrow \frac{5}{2}R$