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Question: Answered & Verified by Expert
Amount of work which can be obtained from $200$ cal heat, will be
PhysicsThermodynamicsJIPMERJIPMER 2004
Options:
  • A 280 J
  • B 800 J
  • C 420 J
  • D 840 J
Solution:
1071 Upvotes Verified Answer
The correct answer is: 840 J
Amount of work done is given by
$W=200 \mathrm{cal}=200 \times 4.2 \mathrm{~J}=840 \mathrm{~J}$

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