The K.E of one mole of an ideal gas is E=5/2 RT. Then Cρ will be
0.3 R
3.5 R
2.5 R
0.4 R
E= Cν 1.T= 5/2 RT
Therefore Cν = 5/2 RT
Cρ = Cν +R= 5/2R + R= 7/2 R= 3.5R