Answer
$-2.8\times10^{2}\,J$
Work Step by Step
We find:
$w= -P\Delta V$
$=-(1.1\,atm)(2.5\,L-0.0\,L)$
$=-2.75\,L\cdot atm$
$=-2.75\,L\cdot atm\times\frac{101.325\,J}{1\,L\cdot atm}$
$=-2.8\times10^{2}\,J$
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