Question

Consider the following statement : for diatomic gases , the ratio $C_p/C_v$ 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

Answer: (A)

$1,2$ and $3$

As the temperature increase, the ratio $C_p/C_v$ decreases.

Hence, Option "A" is the correct answer.