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One mole of a monoatomic ideal gas undergoes thermodynamics processes as shown schematically in the PV-diagram below. Process 1-4 is a straight line passing through origin. Match the statements in List-I with the corresponding statements in List-II.
List-I
List-II
(P)
Work done by the gas is zero
(1)
In process 2-1
(Q)
Temperature of the gas remains unchanged
(2)
In process 4-3
(R)
Work done is positive
(3)
In process 0-4
(S)
Work done is negative
(4)
In process 0-4-3-0

(5)
In process 0-2-1-0

(6)
In process 1-0
(7) In no process

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$(P) - (7), (Q) - (4, 5), (R) - (3, 5, 6), (S) - (1, 2, 4)$

$(P) - (7), (Q) - (3, 5, 6), (R) - (2, 5), (S) - (4)$

$(P) - (3, 5), (Q) - (4, 6), (R) - (1), (S) - (2)$

$(P) - (7), (Q) - (4, 6), (R) - (2), (S) - (1)$

answer is A.

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Detailed Solution

Word done is positive in clockwise process and negative in anti-clockwise process

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