The ratio of Cp/Cv for a rigid diatomic gas is? (Cp and Cv are molar specific heats at constant pressure and constant volume respectively)

The ratio of Cp/Cv for a rigid diatomic gas is? (Cp and Cv are molar s

1.	The ratio of Cp/Cv for a rigid diatomic gas is? (Cp and Cv are molar specific heats at constant pressure and constant volume respectively)
A.	5/3
B.	7/5
C.	3/5
D.	5/7
Answer» C. 3/5