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General
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Question

One mole of an ideal gas is kept enclosed under a light piston (area=10– 2 m2 ) connected by a compressed spring (spring constant 100 N/m). The volume of gas is 0.83 m3 and its temperature is 100K. The gas is heated slowly so that it compresses the spring further by 0.1 m. The work done by the gas in the process is: (Take R = 8.3 J/K-mole and suppose there is no atmosphere).

  1. 3 J    
  2. 6J    
  3. 9J    
  4. 1.5 J    

The correct answer is: 1.5 J


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