Carnot cycle (reversible) of a gas represented by a pressure volume curve is shown in the diagram Consider the following statement I Area ABCD = Work done on the gas II Area ABCD = Net heat absorbed III Change in the internal energy in cycle = `0` Which of these are correct? A. I onlyB. II onlyC. II and IIID. I, II and III

Carnot cycle (reversible) of a gas represented by a pressure volume cu

1.	Carnot cycle (reversible) of a gas represented by a pressure volume curve is shown in the diagram Consider the following statement I Area ABCD = Work done on the gas II Area ABCD = Net heat absorbed III Change in the internal energy in cycle = `0` Which of these are correct? A. I onlyB. II onlyC. II and IIID. I, II and III
Answer» Correct Answer - C Work done by the gas (as cyclic process is clockwise ) `:. DeltaW = Area ABCD` so from the first law of thermodynamics `Delta Q` (net heat absorbed) = `DeltaW = Area ABCD` as change in internal energy in cycle `DeltaU = 0`.

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