The ratio of the molar heat capacities of diatomic gas at constant pressure to that at constant volu

Question

The ratio of the molar heat capacities of diatomic gas at constant pressure to that at constant volume is\

Professor PC Thomas Classes · Answer

For a diatomic gas, Molar heat capacity at constant pressure,\ $\mathrm{C}_{\mathrm{p}}=\frac{7}{2} \mathrm{R}$\ Molar heat capacity at constant volume,\ $\mathrm{C}_{\mathrm{v}}=\frac{5}{2} \mathrm{R}$\ $	herefore \frac{\mathrm{C}_{\mathrm{p}}}{\mathrm{C}_{\mathrm{v}}}=\frac{\frac{7}{2} \mathrm{R}}{\frac{5}{2} \mathrm{R}}=\frac{7}{5}$\