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(C) An isolated system is defined as a system that cannot exchange energy or matter with its surroundings.For an isolated system,the total internal en

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$ \Delta U = 0, \Delta S > 0 $

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(C) An isolated system is defined as a system that cannot exchange energy or matter with its surroundings.For an isolated system,the total internal energy remains constant,so $ \Delta U = 0 $.According to the second law of thermodynamics,for a spontaneous process in an isolated system,the total entropy of the system must increase,so $ \Delta S_{total} > 0 $.Note that $ \Delta G $ is typically defined for systems at constant temperature and pressure,which is not applicable to an isolated system in the same way; however,the primary criterion for spontaneity in an isolated system is $ \Delta S > 0 $.

In an isolated system,find the condition for a spontaneous reaction.

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