Entropy and the Second Law of Thermodynamics

Chapter , Problem 25E

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The normal boiling point of \(\operatorname{Br}_{2}(I)\) is \(58.8^{0} \mathrm{C}\), and its molar enthalpy of vaporization is \(\Delta H_{v a p}=29.6 \mathrm{~kJ} / \mathrm{mol}\). (a) When \(\operatorname{Br}_{2}(I)\) boils at its normal boiling point, does its entropy increase or decrease? (b) Calculate the value of \(\Delta S\) when  mol of \(\operatorname{Br}_{2}(I)\) is vaporized at \(58.8^{0} \mathrm{C}\)

Equation transcription:

Text transcription

\operatorname{Br}_{2}(I):

58.8^{0} \mathrm{C}

\Delta H_{v a p}=29.6 \mathrm{~kJ} / \mathrm{mol}

\Delta S

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