Q. Equal volumes of monoatomic and diatomic gases at same initial temperature and pressure are mixed. The ratio of specific heats of the mixture $(C_{p}/C_{v})$ will be

A) 1
B) 2
C) 1.67
D) 1.2
Explanation

(d)
For monoatomic gas, $\gamma_{2} = \frac{C_{p}}{C_{v}} = 1.67$
For diatomic gas, $\gamma_{2} = \frac{C_{p}}{C_{v}} = 1.40$
$\therefore\ \gamma_{1}:\gamma_{2} = \frac{1.67}{1.40} = 1.19:1$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.