Question

Consider the following statements : For diatomic gases, the ratio $\frac{C_p}{C_v}$ is equal to

(1) 1.40 (lower temperature)

(2) 1.66 (moderate temperature)

(3) 1.29 (higher temperature) Which of the above statements are correct

• A. 1, 2 and 3
• B. 1 and 2
• C. 2 and 3
• D. 1 and 3

Answer 1

The correct option is D

1 and 3

$\frac{C_p}{C_v}$ ratio for diatomic gases is 1.40 at lower temperature & 1.29 at higher temperature so the answer is 'd'.