Assertion: In an isothermal expansion, the gas absorbs heat and does work while in an isothermal compression, work is done on the gas by the environment and heat is released. Reason: In an isothermal process, there is no change in internal energy of an ideal gas.

Question

Assertion: In an isothermal expansion, the gas absorbs heat and does work while in an isothermal compression, work is done on the gas by the environment and heat is released. Reason: In an isothermal process, there is no change in internal energy of an ideal gas. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

From first law of thermodynamics, In isothermal expansion heat supplied to the gas equals the work done by the gas.

Q. Assertion : In an isothermal expansion, the gas absorbs heat and does work while in an isothermal compression, work is done on the gas by the environment and heat is released. Reason : In an isothermal process, there is no change in internal energy of an ideal gas.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

From first law of thermodynamics, In isothermal expansion heat supplied to the gas equals the work done by the gas.