Kinetic Theory Of Gases Question 98
Question: The molar specific heat at constant pressure of an ideal gas is (9/2)R. The ratio of specific heat at constant pressure to that at constant volume is
Options:
A) 1.58
B) 1.82
C) 1.28
D) 1.44
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ C _{p}=( \frac{f}{2}+1 )R=\frac{9}{2}R $
$ \Rightarrow f=7 $
$ \frac{C _{p}}{C _{v}}=1+\frac{2}{f}=1+\frac{2}{7}=1.28 $