Question

A system undergoing change in state from A to B along path ‘X’ rejects 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’? *
– 110 J
+ 110 J
– 90 J
+ 90 J

Answer 1

Answer: -100J

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