NEET Physics Isothermal & Adiabatic Processes MCQ Question
In an isothermal process, what is the change in internal energy (∆U) of an ideal gas?
Zero
Equal to the work done
Equal to the heat added
Negative value
Correct Answer
Detailed Explanation
For an isothermal process, the internal energy change (∆U) is zero because the temperature remains constant, as stated in the NCERT context. Therefore, any heat added to the system is equal to the work done by the system.
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