Kinetic Theory of Gases: Practice Problem & Solution

Solution Explained:

To solve this problem, we apply the core principles of Kinetic Theory of Gases. Understanding the underlying formula is key to arriving at the correct answer below:

The molar heat capacities are $C_v = \frac{n}{2}R$ and $C_p = C_v + R = \left(\frac{n}{2} + 1\right)R$. Their ratio $\gamma = \frac{C_p}{C_v} = \frac{(\frac{n}{2} + 1)R}{\frac{n}{2}R} = 1 + \frac{2}{n}$.