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Question : 98 of 160
Marks:
+1,
-0
Solution:
In a cycle, internal energy is same at start and end.
Hence, heat absorbed equals work done
i.e.,
Q=W Work done
= Area under
p -
V curve.
=‌(15)×(20)=150J Work done in
20 cycles
=20×150J‌=3000J=3‌kJ
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