`C_v and C_p` denote the molar specific heat capacities of a gas at constant volume and constant pressure, respectively. Then

Options

A. `Cp-Cv` is larger for a diatomic ideal gas than for a monatomic ideal gas.
B. `Cp+Cv` is larger for a diatomic ideal gas than for a monatomic ideal gas.
C. `Cp//Cv` is larger for a diatomic ideal gas than for a monatomic ideal gas.
D. `Cp * Cv` is larger for a diatomic ideal gas than for a monatomic ideal gas.

Answer

B, D

Explanation

For monatomic gas,
`C_(v)=(3)/(2)R,C_(p)=(5)/(2)(R)`
For diatomic gas,
`C_(v)=(5)/(2)R,C_(p)=(7)/(5)R`