Chemistry · 2017
JEE Main · 9 April 2017, Shift 1 · Q37
A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is…
A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is $\displaystyle 5$ J and $\displaystyle 8$ J, respectively. Now gas is brought back to A by another process during which $\displaystyle 3$ J of heat is evolved. In this reverse process of B to A :
Official answer
(4)
$\displaystyle 6$ J of the work will be done by the surrounding on gas.
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JEE Main 2017 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.