Correct Answer - Option 3 : 3 × 10
4 J
CONCEPT:
Isobaric process:
- When a thermodynamic process undergoes a physical change in such a way that its pressure remains constant, then the change is known as the isobaric process.
⇒ P = constant
CALCULATION:
Given P = 3 bar = 3×105 N/m2, V1 = 200 litres = 0.2 m3 and V2 = 100 litres = 0.1 m3
- When the pressure is constant during the process, then the work done is given as,
⇒ W = P(V2 - V1)
⇒ W = 3 × 105 × (0.1 - 0.2)
⇒ W = -3 × 105 × 0.1
⇒ W = -3 × 104 J
- Hence, option 3 is correct.