

MCQOPTIONS
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1. |
A system undergoing change in state from A to B along path ‘X’ receives 100 J heat and does 40 J work. It returns to state A from B along path ‘Y’ with work input of 30 J. Calculate the heat transfer involved along the path ‘Y’.$ |
A. | – 60 J |
B. | 60 J |
C. | – 90 J |
D. | 90 J |
Answer» D. 90 J | |