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Question: Answered & Verified by Expert
A perfect gas contained in a cylinder is kept in vacuum. If the cylinder suddenly bursts, then the temperature of the gas
PhysicsThermodynamicsNEET
Options:
  • A remains constant
  • B becomes zero
  • C increases
  • D decreases
Solution:
2724 Upvotes Verified Answer
The correct answer is: remains constant
During free expansion of a perfect gas no work is done and also no heat is supplied from outside. Therefore from first law of thermodynamics, there is no change in the internal energy. Hence, temperature remains constant.

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