JEE Main On 8 April 2017 Question 27
Question: An ideal gas has molecules with 5 degrees of freedom. The ratio of specific heats at constant pressure $ (C _{P}) $ and at constant volume $ (C _{V}) $ is [JEE Online 08-04-2017]
Options:
A) $ \frac{7}{5} $
B) 6
C) $ \frac{7}{2} $
D) $ \frac{5}{2} $
Show Answer
Answer:
Correct Answer: A
Solution:
- $ f=\frac{C _{P}}{C _{a}}=1+\frac{2}{1} $ $ =7/5 $
