Absolute entropy and entropy change | Applications of thermodynamics | AP Chemistry | Khan Academy

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The standard molar entropy of a substance is the absolute entropy of 1 mole of the substance in the standard state. For any chemical reaction, the standard entropy change is the sum of the standard molar entropies of the products minus the sum of the standard molar entropies of the reactants. View more lessons or practice this subject at https://www.khanacademy.org/science/a...

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