Question 5 5.1 The normal boiling temperature of benzene is 353.24 K and the vapour pressure of liquid benzene is 1.19x104 Pa at 20 °C. (a) Calculate AyapH (kJ.mol) for benzene. (b) What is the AvapSo for benzene in kJ.mol !? 5.2 Water boils at 100 °C at 1 atm and its enthalpy of vaporization is 40.7 kJ.mol. In some chemistry experiment, it is desired that the water boils at temperature of 89 °C. Calculate what external pressure should be (in atm) in this case.

Question 5 5.1 The normal boiling temperature of benzene is 353.24 K and the vapour pressure of liquid benzene is 1.19x104 Pa at 20 °C. (a) Calculate AyapH (kJ.mol) for benzene. (b) What is the AvapSo for benzene in kJ.mol !? 5.2 Water boils at 100 °C at 1 atm and its enthalpy of vaporization is 40.7 kJ.mol. In some chemistry experiment, it is desired that the water boils at temperature of 89 °C. Calculate what external pressure should be (in atm) in this case.

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 13ALQ

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