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A system is taken from state A to state B along two different paths 1 and 2. The heat absorbed and work done by the system along these paths are $Q_1$ and $Q_2$ and $Q_2$ and $Q_2$ respectively. Then

$(a)\;Q_1=Q_2 \\(b)\; W_1+Q_1=Q_2+W_2 \\(c)\;W_1=W_2 \\(d)\;Q_1-W_1=Q_2-W_2 $

1 Answer

By first law of thermodynamics
$Q_1+(-W_1) = Q_2+ (-W_2) $
Hence $Q_1-W_1=Q_2-W_2 $ is correct.
Hence d is the correct answer.
answered Mar 13, 2014 by meena.p
edited Mar 6 by sharmaaparna1

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