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As shown in the diagram for a closed path ABCA |
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Answer» osed path, work done = area of the closed path.= 1/2 x BASE x height=1/2 x (V2 - V1) x (P2 - P1)also the ROTATION of the closed surface is in anticlockwise THEREFORE work done is negetive for a P-V graph... there you go fam ANSWER is (a) -1/2 (P2 - P1) (V2 - V1)key point : if it was a V-P graph, anticlockwise is positive and CLOCKWISE is negetive I hope you have understood fam |
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