Asked by 01236
What is the definition of entropy?
a system that can exchange both matter and energy with its surroundings
a measure of the overall disorder of a system
a quantity that measures the overall spontaneity of a reaction
a process that will proceed without continuous external influence
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Correct answer: "a measure of the overall disorder of a system."
Brief clarification: More precisely, entropy quantifies the number of microscopic configurations (microstates) consistent with a system's macroscopic state (S = k ln W) and in thermodynamics is defined differentially as dS = δQ_rev/T. The other choices describe an open system (1), spontaneity/process behavior (3 and 4), not entropy itself.
Brief clarification: More precisely, entropy quantifies the number of microscopic configurations (microstates) consistent with a system's macroscopic state (S = k ln W) and in thermodynamics is defined differentially as dS = δQ_rev/T. The other choices describe an open system (1), spontaneity/process behavior (3 and 4), not entropy itself.
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