Benzene is a liquid under standard conditions. The standard enthalpy and entropy changes for the evaporation of liquid benzene vapor are +33.9 kJ/mol and 96.3 J/molK, respectively. If liquid benzene is placed in a closed container at 78.85°C, which of the following statements is true? A. Liquid and vapor-phase benzene cannot coexist at temperatures greater than or equal to 78.85°C. B. Liquid benzene will evaporate until the vapor pressure is 1 bar. C. The liquid will evaporate completely. D. Liquid benzene will not evaporate. E. The liquid cannot attain equilibrium with its vapor in a closed container.
Benzene is a liquid under standard conditions. The standard enthalpy and entropy changes for the evaporation of liquid benzene vapor are +33.9 kJ/mol and 96.3 J/molK, respectively. If liquid benzene is placed in a closed container at 78.85°C, which of the following statements is true? A. Liquid and vapor-phase benzene cannot coexist at temperatures greater than or equal to 78.85°C. B. Liquid benzene will evaporate until the vapor pressure is 1 bar. C. The liquid will evaporate completely. D. Liquid benzene will not evaporate. E. The liquid cannot attain equilibrium with its vapor in a closed container.
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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Benzene is a liquid under standard conditions. The standard enthalpy and entropy changes for the evaporation of liquid benzene vapor are +33.9 kJ/mol and 96.3 J/molK, respectively. If liquid benzene is placed in a closed container at 78.85°C, which of the following statements is true?
A. Liquid and vapor-phase benzene cannot coexist at temperatures greater than or equal to 78.85°C.
B. Liquid benzene will evaporate until the vapor pressure is 1 bar.
C. The liquid will evaporate completely.
D. Liquid benzene will not evaporate.
E. The liquid cannot attain equilibrium with its vapor in a closed container.
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