Carnot cycle (reversible) of a gas represented by a Pressure- Volum...

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Carnot cycle (reversible) of a gas represented by a Pressure-
Volume curve is shown in the diagram
\( \mathrm{P} \) Consider the following statements

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I. Area \( A B C D= \) Work done on the gas
II. Area \( A B C D= \) Net heat absorbed
III. Change in the internal energy in cycle \( =0 \)
Which of these are correct
[AMU (Med.) 2001]
(a) I only
(b) II only
(c) II and III
(d) I, II and III
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