NEET Physics Laws of Thermodynamics MCQ Question
Which of the following combinations correctly describes properties of an isolated system and the implications of the second law of thermodynamics?
An isolated system allows energy exchange with surroundings; entropy in an isolated system remains constant.
An isolated system does not exchange energy or matter; the entropy of an isolated system tends to increase.
An isolated system can exchange matter but not energy; processes in an isolated system are always spontaneous.
An isolated system has defined pressure and temperature; entropy decreases in all isolated systems over time.
Correct Answer
Detailed Explanation
An isolated system does not exchange energy or matter with its surroundings, and according to the second law of thermodynamics, the entropy of an isolated system tends to increase over time.
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