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Question

A thermodynamical system is taken from state A to state B along A C B and is brought back to A along B D A as shown in figure. Net work done during one complete cycle is given by area.

  1. A C B D A    
  2. A C B p subscript 2 end subscript p subscript 1 end subscript A    
  3. A V subscript 1 end subscript V subscript 2 end subscript B D A    
  4. B D A p subscript 1 end subscript p subscript 2 end subscript B    

The correct answer is: A C B D A


    In a cycle process, work done is equal to area of the loop A C B D A, representing the cycle of changes

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