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4 g of He gas is taken in a cyclic process as shown on the P-T diagram. The minimum temperature is 300 K and the maximum is 600 K. The pressures of the points are, PA = 1 × 105 N/m2 , PB = PD = 2 × 105 N/m2 .

Net work done by the gas in the cycle is 

(A) +ve 

(B) – ve

(C) Zero

(D) +ve or –ve depending upon the value of pressure of state C.

1 Answer

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Best answer

Correct option: (A) +ve

Explanation:

Clockwise cyclic process on P-V diagram has +ve work.

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