Q.
The specific heat at constant pressure and at constant volume for an ideal gas are $C_{p}$ and $C_{v}$ and its adiabatic and isothermal elasticities are $E_{\phi}$ and $E_{\theta}$ respectively. The ratio of $E_{\phi}$ to $E_{\theta}$ is
A) $C_{v}/C_{p}$
B) $C_{p}/C_{v}$
C) $C_{p}C_{v}$
D) $1/C_{p}C_{v}$
Explanation
(b) Ratio of adiabatic and isothermal elasticities
$\frac{E\phi}{E\theta} = \frac{\gamma P}{P} = \gamma = \frac{C_{p}}{C_{v}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.