NEET2018PhysicsThermodynamicsActual
The Volume V of a monoatomic gas varies with its temperature T , as shown in the graph. The ratio of work done by the gas, to the heat absorbed by it, when it undergoes a change from state A to state B , is
Options
- A1 3
- B2 3
- C2 5
- D2 7
Correct answer
C. 2 5
Step-by-step solution
V ∝ T ⇒ Isobaric process W = P ∆ V = n R ∆ T ∆ Q = n C P ∆ T For mono atomic gas f = 3 C P = f 2 R + R = 5 2 R So W ∆ Q = n R ∆ T n C P ∆ T = 2 5