One mole of an ideal gas at $25\,^{\circ}C$ expands its volume from $1\,L$ to $4\,L$ at constant temperature. What work (in $J$) is done if the gas expands against a vacuum $(P_{ext} = 0)$?
- A$-4 \times 10^2$
- B$-3 \times 10^2$
- C$-1 \times 10^2$
- DZero
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