NEET Physics Isothermal & Adiabatic Processes Assertion Reason Question
Assertion (A): During an isothermal expansion of an ideal gas, the internal energy of the system remains constant. | Reason (R): In an isothermal process, the temperature of the system changes resulting in a change in internal energy.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false, but R is true.
Correct Answer
Detailed Explanation
In an isothermal process, the temperature remains constant, so the internal energy does not change. The reason given is incorrect as it states temperature changes.
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