Question

specific heat of polyatomic gases are​

Answer 1

Here is ur Answer mate:-

Polyatomic gases will have 3 translational degree of freedom, 3 rotational degrees of freedom and ‘f’ number of vibrational modes.

Total internal energy of 1 mole of gas =(3x(1/2)kBT + 3x(1/2)kBT+ fkBT)x NA

((3/2) + (3/2) +f)RT = (3+f) RT.

CV=dU/dT = (3+f)R

CP=CV+R=(4+f)R

γ= CP/CV = (4+f)/(3+f)

Hope it helps you

Thanks...