JEE Main 2026 — Thermal Properties of Matter Question with Solution
JEE Main 2026 (05 April Shift 2)
Question
The heat extracted out of gram of water initially at to cool it down to is sufficient to evaporate gram of water also initially at . The value of (closest integer) is _______.
(Take latent heat of water , specific heat capacity of water )
(Take latent heat of water , specific heat capacity of water )
Enter your answer
Show full solutionCorrect answer: 922
Correct answer
922
Step-by-step explanation
Heat extracted to cool gram of water from to is given by:
Heat required to raise the temperature of gram of water from to and evaporate it is given by:
Equating the heat extracted and the heat required:
The closest integer value for is .
Answer:
Heat required to raise the temperature of gram of water from to and evaporate it is given by:
Equating the heat extracted and the heat required:
The closest integer value for is .
Answer:
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This is a previous-year question from JEE Main 2026, covering the Thermal Properties of Matter 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.