NEET Physics Isothermal & Adiabatic Processes MCQ Question
Which of the following statements about isothermal and adiabatic processes is correct?
In an isothermal process, the temperature remains constant while the internal energy changes.
In an adiabatic process, heat is exchanged with the surroundings.
For an isothermal expansion of an ideal gas into a vacuum, the work done is zero.
In an adiabatic process, both heat and work are accounted for in the change of internal energy.
Correct Answer
Detailed Explanation
For an isothermal expansion of an ideal gas into a vacuum, the work done (w) is zero, and therefore, the heat exchanged (q) is also zero, leading to no change in internal energy (∆U = 0). This is consistent with the statements presented in Chunk 1.
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