Two ideal di-atomic gases A and B. A is rigid, B has an extra degree of freedom due to vibration. Mass of 
is 
and mass of 
is 
. The ratio of molar specific heat of 
to 
at constant volume is
Text Solution
Verified by ExpertsD
We know that,
Molar heat capacity at constant volume, 
(Where 
is degree of freedom)
Since, 
is diatomic and rigid, degree of freedom for 
is 5
Therefore, Molar heat capacity of 
at constant volume 
Since, 
is diatomic and have extra degree of freedom because of vibration, degree of freedom for 
is 
( 1 vibration for each atom).
Therefore, Molar heat capacity of B at constant volume 
Ratio of molar specific heat of 
and 
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