At 100°C, the standard molar is the enthalpy of vaporization ∆vapH⊖m of water 40.7 kJ mol-1 while the standard molar entropy of vaporization ∆vapS⊖m = 109.1 J mol-1 K-1. The molar standard heat capacities of water as a liquid and water as a gas are, respectively, 75,291J mol-1 K-1 and 33.58 J mol-1 K-1. 6) Calculate both the standard molar enthalpy of vaporization and the standard molar entropy of vaporization at 25°C. It must be assumed that the heat capacities are independent of the temperature.
At 100°C, the standard molar is the enthalpy of vaporization ∆vapH⊖m of water 40.7 kJ mol-1 while the standard molar entropy of vaporization ∆vapS⊖m = 109.1 J mol-1 K-1. The molar standard heat capacities of water as a liquid and water as a gas are, respectively, 75,291J mol-1 K-1 and 33.58 J mol-1 K-1. 6) Calculate both the standard molar enthalpy of vaporization and the standard molar entropy of vaporization at 25°C. It must be assumed that the heat capacities are independent of the temperature.
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter13: Spontaneous Processes And Thermodynamic Equilibrium
Section: Chapter Questions
Problem 22P: Use data from Appendix D to calculate the standardentropy change at 25°C for the reaction...
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At 100°C, the standard molar is the enthalpy of vaporization ∆vapH⊖m of water 40.7 kJ mol-1 while the standard molar entropy of vaporization ∆vapS⊖m = 109.1 J mol-1 K-1. The molar standard heat capacities of water as a liquid and water as a gas are, respectively, 75,291J mol-1 K-1 and 33.58 J mol-1 K-1.
6) Calculate both the standard molar enthalpy of vaporization and the standard molar entropy of vaporization at 25°C. It must be assumed that the heat capacities are independent of the temperature.
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