For a diatomic gas,write the value of the ratio of $C_P$ and $C_V$.

If the specific heats of a monoatomic gas and a diatomic gas are the same, which relation is valid?

The ratio of molar specific heats of oxygen is

$5 \ \text{moles}$ of an unknown gas is heated at constant volume from $10^\circ \text{C}$ to $20^\circ \text{C}$. The molar specific heat of this gas at constant pressure is $c_p = 8 \ \text{cal/mol} \cdot ^\circ \text{C}$ and the gas constant is $R = 8.36 \ \text{J/mol} \cdot ^\circ \text{C}$. The change in the internal energy of the gas is . . . . . . calorie.

Write the value of $\frac{C_P}{C_V}$ for a monoatomic gas.

Write definitions of molar specific heat at constant pressure and constant volume.