The molar specific heat capacity of all monoatomic gases is same . Why ?

Q: The molar specific heat capacity of all monoatomic gases is same . Is this true or false ? (Assume ideal nature )

Sol: True . The molar specific heat capacity is given by

$\large C_v = \frac{R}{\gamma -1}$ ; Where R is universal gas constant and γ is same for all monoatomic gases and hence , the molar specific heat capacity of all monoatomic gases is same .