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- and 82.55 cm mol', respectively. High Temperature Materials and Processes 26 (2007) 365-369 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. а. b. Estimate the freezing temperature of benzene at 92.5 MPa.
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- and 82.55 cm mol', respectively. High Temperature Materials and Processes 26 (2007) 365-369 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. а. b. Estimate the freezing temperature of benzene at 92.5 MPa.
Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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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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