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19.23/The normal boiling point of the element mercury (Hg) is 356.7 °C, and its molar enthalpy of vaporization is 59.11 kJ/mol. (a) When Hg boils at its nor AHvap mal boiling point, does its entropy increase or decrease? (b) Calculate the value of AS when 2.00 mol of Hg is vaporized at 356.7°C. %3D

19.23/The normal boiling point of the element mercury (Hg) is 356.7 °C, and its molar enthalpy of vaporization is 59.11 kJ/mol. (a) When Hg boils at its nor AHvap mal boiling point, does its entropy increase or decrease? (b) Calculate the value of AS when 2.00 mol of Hg is vaporized at 356.7°C. %3D

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Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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19.23 The normal boiling point of the element mercury (Hg) lute temperature and the amount of heat reversibly for an isothermal process depens on both the abso- e T. transferred. is 356.7 °C, and its molar enthalpy of vaporizationi AHan = 59.11 kJ /mol. (a) When Hg boils at its nor mal boiling point, does its entropy increase or decrease? (b) Calculate the value of AS when 2.00 mol of Hg is vaporized at 356.7 °C. 19.24 The element sodium (Na) melts at 97.8 °C, and its molar 2.60 kJ/mol. (a) When mol- ten sodium solidifies to Na(s), is AS positive or negative? (b) Calculate the value of AS when 50.0 g of Na(l) solidi- enthalpy of fusion is AHUS fies at 97.8 °C.
Transcribed Image Text:19.23 The normal boiling point of the element mercury (Hg) lute temperature and the amount of heat reversibly for an isothermal process depens on both the abso- e T. transferred. is 356.7 °C, and its molar enthalpy of vaporizationi AHan = 59.11 kJ /mol. (a) When Hg boils at its nor mal boiling point, does its entropy increase or decrease? (b) Calculate the value of AS when 2.00 mol of Hg is vaporized at 356.7 °C. 19.24 The element sodium (Na) melts at 97.8 °C, and its molar 2.60 kJ/mol. (a) When mol- ten sodium solidifies to Na(s), is AS positive or negative? (b) Calculate the value of AS when 50.0 g of Na(l) solidi- enthalpy of fusion is AHUS fies at 97.8 °C.
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