JEE Physics · Medium

Kinetic Theory and Thermodynamics: Isothermal Process MCQ

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

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Isothermal ProcessMediumQuestion 31067

Question

In isothermal expansion of ideal gas, temperature is constant, so ΔU = 0. Heat absorbed:
  1. A
    Goes to increase temperature
  2. B
    Is fully converted to work
    Correct
  3. C
    Is stored as internal energy
  4. D
    Is zero

Correct answer

Is fully converted to work

Explanation

ΔU = 0 → Q = W. All heat absorbed by the gas is converted into work done during isothermal expansion.