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Question

A monoatomic ideal gas sample is given heat Q One fourth of this heat is used as work done by the gas and rest is used for increasing its internal energy An ideal gas under goes a thermodynamic cycle as shown in fig Which of the following graphs represents the same cycle?

A)
B) 
C)
D) 

  1. A, C    
  2. B, D    
  3. A, D    
  4. B, C    

The correct answer is: A, C

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Statement-1: Two vessels A and B are connected to each other by a stopcock .Vessel A contains a gas at 300K and 1 atmosphere pressure and vessel B is evacuated The two vessels are thermally insulated from the surroundings If the stopcock is suddenly opened, the expanding gas does no work
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