(ans: 1.33 x 10" hz) 2.9 assuming k/ncy = 5/2 for translational modes and k/ncy = i for other internal modes, show that for a polyatomic gas k/ncy = 9y-5 where

(Ans: 1.33 x 10" Hz) 2.9 Assuming K/nCy = 5/2 for translational modes and K/nCy = I for other internal modes, show that for a polyatomic gas K/nCy = 9y-5 where y= p Cy