A sample of 58.90 g solid benzene at −2.4°C was heated until it absorbed 13.5 kJ of heat, at a constant pressure of 1 atmosphere. Using the data given in the table below, determine the final phase and final temperature of the benzene sample. Properties of Benzene Values melting point 5.49°C boiling point 80.09°C heat of fusion at 5.49°C 9.87 kJ/mol heat of vaporization at 80.09°C 30.72 kJ/mol molar heat capacity of solid at 0°C 118.4 J/mol·K molar heat capacity of liquid at 25°C 136.0 J/mol·K molar heat capacity of gas at 95°C 103.98 J/mol·K
A sample of 58.90 g solid benzene at −2.4°C was heated until it absorbed 13.5 kJ of heat, at a constant pressure of 1 atmosphere. Using the data given in the table below, determine the final phase and final temperature of the benzene sample. Properties of Benzene Values melting point 5.49°C boiling point 80.09°C heat of fusion at 5.49°C 9.87 kJ/mol heat of vaporization at 80.09°C 30.72 kJ/mol molar heat capacity of solid at 0°C 118.4 J/mol·K molar heat capacity of liquid at 25°C 136.0 J/mol·K molar heat capacity of gas at 95°C 103.98 J/mol·K
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter14: Liquids And Solids
Section: Chapter Questions
Problem 15QAP
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Question
A sample of 58.90 g solid benzene at
−2.4°C
was heated until it absorbed 13.5 kJ of heat, at a constant pressure of 1 atmosphere. Using the data given in the table below, determine the final phase and final temperature of the benzene sample.
| Properties of Benzene | Values |
| melting point | 5.49°C |
| boiling point | 80.09°C |
| heat of fusion at 5.49°C | 9.87 kJ/mol |
| heat of vaporization at 80.09°C | 30.72 kJ/mol |
| molar heat capacity of solid at 0°C | 118.4 J/mol·K |
| molar heat capacity of liquid at 25°C | 136.0 J/mol·K |
| molar heat capacity of gas at 95°C | 103.98 J/mol·K |
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