JEE Physics · Easy

Elasticity, Thermal Expansion, Calorimetry and Heat Transfer: Calorimetry Principle MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Calorimetry PrincipleEasyQuestion 30844

Question

The principle of calorimetry states:
  1. A
    Total heat is always conserved
  2. B
    Heat lost = heat gained in an isolated system
    Correct
  3. C
    Temperature always equalises
  4. D
    Entropy always increases

Correct answer

Heat lost = heat gained in an isolated system

Explanation

In an isolated thermal system, total heat exchange is zero — heat lost by hot body equals heat gained by cold body.