Explain sum of products''s s - sum of reactants''s s

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The unit of S was the J/(mol*K) the book said. But, in delta S, why the unit is J/K? I just think when I want to calculate delta S, sum of products's S - sum of reactants's S, so the unit of delta S is same as S I thought. What is it?

Reference no: EM13328444

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