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Question

The figure shows two paths for the change of state of a gas from A to B. The ratio of molar heat capacities in path 1 and path 2 is

  1. >1    
  2. < 1    
  3. 1    
  4. data insufficient    

The correct answer is: >1


    Molar heat capacity C equals fraction numerator capital delta Q over denominator capital delta T end fraction
    or C equals fraction numerator capital delta U plus capital delta W over denominator d T end fraction
    DU is same in both the paths but DW2 < DW1 ; \ C2 < C1or C1/C2 > 1

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