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One mole of a gas obeying the equation of state  P(V - b) =RT is made to expand from a state with coordinates (P1, V1) to a state with (P2, V2) along a process that is depicted by a straight line on a P - V diagram. Then, the work done is given by :

a
12(P1+P2)(V2-V1)
b
12(P2-P1)(V2-V1)
c
12(P1+P2)(V2-V1+2b)
d
12(P2-P1)(V2+V1+2b)

detailed solution

Correct option is A

P  ∝  V  in the given processP = AV + BW = Area under line=12 P1+P2   V2−V1

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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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