MCQ
A gas expands $0.25 \mathrm{~m}^3$ at constant pressure $10^3 \mathrm{~N} / \mathrm{m}^2$, the work done is
- A$2.5$ ergs
- ✓$250 \mathrm{~J}$
- C$250 \mathrm{~W}$
- D$250 \mathrm{~N}$
✓
Answer
Correct option: B.
$250 \mathrm{~J}$
(b) $\Delta W=P \Delta V=10^3 \times 0.25=250 \mathrm{~J}$
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