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Questions  

A given mass of a gas expands from the state A to B by the three paths 1, 2 and 3. If W1, W2 and W3 respectively be the work done in three paths, then

a
W1 > W2 > W3
b
W1
c
W1 = W2 = W3
d
W1 < W2 and W1 > W3

detailed solution

Correct option is B

W = work done by a gas= Area under P – V diagram.From the given diagram, it is clear that  W3 > W2 > W1

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In the P-V diagram shown in figure, ABC is a semicircle. Find the work done in the process ABC.


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