Question

In a gas of diatomic molecules, the ratio of the two specific heats of gas $\frac{C_p}{C_v}$ is

• A. 1.66
• B. 1.40
• C. 1.33
• D. 1.00

Answer 1

The correct option is B

1.40

for diatomic gns

$C_v=\frac{5}{2}R,C_p=\frac{7}{2}R{r}^{-}=\frac{C_p}{C_R}=\frac{7}{5}=1.4$