JEE Main 2015 — Thermodynamics Question with Solution
JEE Main 2015 (04 Apr)
Question
A solid body of constant heat capacity is being heated by keeping it in contact with reservoirs in two ways: (i) Sequentially keeping in contact with 2 reservoirs such that each reservoir supplies the same amount of heat. (ii) Sequentially keeping in contact with reservoirs such that each reservoir supplies the same amount of heat. In both, cases the body is brought from initial temperature to final temperature . Entropy change of the body in the two cases respectively is: Note: This question was awarded as a bonus since temperatures were given in centigrade instead of in Kelvin. Proper corrections are made in the question to avoid it.
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Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Change in entropy,
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This is a previous-year question from JEE Main 2015, covering the Thermodynamics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.