Mean kinetic energy per degree of freedom for gas molecule is

The degrees of freedom of a molecule of a triatomic gas are

During an adiabatic process, the density of a gas is foung to be proportional to cube of temperature. The degree of freedom of gas molecule is

Mean kinetic energy (or average energy) per gm molecule of a monoatomic gas is given by

In a mixture of gases, the average number of degrees of freedom per molecule is 6. the rms speed of the molecules of the gas is C. the velocity of sound in the gas is

If gamma be the ratio of specific heats (C_(p) & C_(v)) for a perfect gas. Find the number of degrees of freedom of a molecules of the gas?

For a gas gamma = 9//7 . What is the number of degrees of freedom of the molecules of this gas ?