JEE Main & Advanced
Physics
Kinetic Theory of Gases
Question Bank
Self Evaluation Test - Kinetic Theory
question_answer
At very high temperatures vibrational degrees also becomes active. At such temperatures an ideal diatomic gas has a molar specific heat at constant pressure, \[{{C}_{p}}\] is
A)3R/2
B)5R/2
C)6R/2
D)9R/2
Correct Answer:
D
Solution :
[d] At high temperature for diatomic gas\[f=7\] \[{{C}_{p}}=\frac{fR}{2}+R=\frac{9R}{2}\]