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Refrigerator

Rahul Kumar
23/05/2017 0 0

Two identical metal blocks L and M (specific heat = 0.4 kJ/kg.K), each having a mass of 5 kg, are initially at 313 K. A reversible refrigerator extracts heat from block L and rejects heat to block M until the temperature of block L reaches 293 K. The final temperature (in K) of block M is _______

 

  • A    333 K
  • B     785 K
  • C      450 K
  • D      250 K
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