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JEE Main 2019 (12 Jan, Shift 1) · P-V Diagrams & Cyclic Processes

P-V Diagrams & Cyclic Processes question from JEE Main 2019 (12 Jan, Shift 1)

Q64JEE Main 2019 · 12 JAN · SHIFT 1Medium

P-V Diagrams & Cyclic Processes

For the given cyclic process CAB as shown for a gas, the work done is:

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Answer: (b)

Net work = area of triangle CAB.
Base CA $= 5 - 1 = 4$ m $^3$ , height AB $= 6 - 1 = 5$ Pa.
$W = \frac{1}{2} \times 4 \times 5 = 10$ J (C to A to B to C is clockwise, so positive).
So the answer is (b) 10 J.

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