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Chapter 19 Section 4

Chapter 19 Section 4. Entropy -a quantitative measure of the disorder of a system Entropy= S units= J/ Kmol. Standard entropy = S 0 *this is at 25°C and 101.3kPa ∆ S 0 = ∑S 0 (products ) - ∑S 0 (reactants ) (-) = decrease in entropy (+) = increase in entropy

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Chapter 19 Section 4

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  1. Chapter 19 Section 4 Entropy -a quantitative measure of the disorder of a system Entropy= S units= J/Kmol

  2. Standard entropy = S0 *this is at 25°C and 101.3kPa ∆ S0 = ∑S0(products) - ∑S0(reactants) (-) = decrease in entropy (+) = increase in entropy **equations must be balanced **coefficient from balanced equation goes in front of S0 -chart page 558

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