MHT CET202014 Oct 2020Morning ShiftPhysicsThermodynamicsActual
Heat is applied to a rigid diatomic gas at constant pressure. The ratio Q : U : W is
Options
- A5: 7: 2
- B7: 5: 2
- C2: 5: 7
- D5: 2: 7
Correct answer
B. 7: 5: 2
Step-by-step solution
We know, array l Q = nC _ p T U = nC _ v T W = P V = nR T W : U : Q = R : C _ v : C _ p array For a diatomic gas f=5 aligned & C_ v = f 2 R= 5 2 R & C_ p =C_ v +R= 7 2 R R: C_ v : C_ p =1: 5 2 : 7 2 =2: 5: 7 aligned