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What is the vapor pressure, in mmHg, of ethanol at 52.1 °C? What is the entropy of vaporization at standard boiling point?

What is the vapor pressure, in mmHg, of ethanol at 52.1 °C? What is the entropy of vaporization at standard boiling point?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. Solid benzene melts at 28.35 °C when the pressure is 85.2 MPa. The molar volumes of solid and liquid benzene at these conditions are 74.25 cm³ mol-l and 82.55 cm³ mol-', respectively. High Temperature Materials and Processes 26 (2007) 365-369 а. When the pressure is increased to 128 MPa, benzene is found to melt at 39.85 °C. Calculate the enthalpy and entropy of fusion of the solid. b. Estimate the freezing temperature of benzene at 92.5 MPa. The normal boiling point of ethanol, C2H5OH, is 78.3 °C and its molar heat of vaporization is 39.3 kJ mol-'. What is the vapor pressure, in mmHg, of ethanol at 52.1 °C? 2. а. b. What is the entropy of vaporization at standard boiling point?
Transcribed Image Text:1. Solid benzene melts at 28.35 °C when the pressure is 85.2 MPa. The molar volumes of solid and liquid benzene at these conditions are 74.25 cm³ mol-l and 82.55 cm³ mol-', respectively. High Temperature Materials and Processes 26 (2007) 365-369 а. When the pressure is increased to 128 MPa, benzene is found to melt at 39.85 °C. Calculate the enthalpy and entropy of fusion of the solid. b. Estimate the freezing temperature of benzene at 92.5 MPa. The normal boiling point of ethanol, C2H5OH, is 78.3 °C and its molar heat of vaporization is 39.3 kJ mol-'. What is the vapor pressure, in mmHg, of ethanol at 52.1 °C? 2. а. b. What is the entropy of vaporization at standard boiling point?
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