An ideal gas is allowed to expand from 1 L to 10 L against a constant external pressure of 1bar. The work done in kJ is:
- (A)-9.0
- (B)-0.9✓ Correct
- (C)-2.0
- (D)+10.0
Answer: (B)
Solution
Expansion against a fixed external pressure does work . With , and , the volume change is . Hence .
JEE Main · 2019 · 12 Apr 2019 · Shift 1 · Single correct option