In a mixture of gases, the average number of degree of freedoms per molecule is 6 . The rms speed of the molecule of the gas is c , then the velocity of sound in the gas is

Step-by-step solution

( v_ rms = 3 R T M and v_ sound = R T M v_ sound v_ rms = 3 Degree of freedom is 6 . array lr & =1+ 2 f =1+ 2 6 = 4 3 & v_ sound = 4 / 3 3 v_ rms = 2 3 v_ rms = 2 c 3 array