MCQ
One mole of an ideal gas at $25\,^oC$ expands its volume from $1\,L$ to $4\,L$ at constant temperature. What work (in $J$) is done if gas expands against vaccum $(P_{ext} = 0)$?
- A$-4 \times 10^2$
- B$-3 \times 10^2$
- C$-1 \times 10^2$
- ✓Zero
$\therefore \mathrm{W}=0$
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