Q. What is the value of $\frac{R}{C _{p}}$ for a diatomic gas?

1521 228 Rajasthan PMTRajasthan PMT 2002Thermodynamics Report Error

A

5/7

29%

B

2/7

29%

C

3/5

29%

D

3/4

14%

Solution:

Specific heat at constant pressure for diatomic gas
$C_{p} = \frac{7}{2} R$
$\frac{R}{C _{p}} = \frac{2}{7}$