A system can be taken from the initial state pv, V1 to the final state p2, V2 by two different methods. Let ΔQ and AW represent the heat given to the system and the work done by the system. Which of the following must be the same in both the methods ? 

(a) ΔQ 

(b) ΔW 

(c) ΔQ + AW 

(d) ΔQ - ΔW.

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1 Answers

The correct answer is (d) ΔQ - ΔW.

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