In a heat engine, the temperature of the source and sink are $500\, K$ and $375\, K$. If the engine consumes $25\times10^5\, J$ per cycle, the work done per cycle is
  • A$6.25\times10^5\, J$
  • B$3\times10^5\, J$
  • C$2.19\times10^5\, J$
  • D$4\times10^4\, J$
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