Thermodynamics Ques 18
18. During an isothermal expansion, a confined ideal gas does $-150 J$ of work against its surroundings. This implies that
[2011]
(a) $150 J$ heat has been removed from the gas
(b) $300 J$ of heat has been added to the gas
(c) no heat is transferred because the process is isothermal
(d) $150 J$ of heat has been added to the gas
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Answer:
Correct Answer: 18.(d)
Solution:
- (d) According to the question, work done by the gas is given as $-150 , \text{J}$, so the answer will be (d).
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