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1. How much heat is released when 165 g of liquid benzene, C6H6 (1), cools from 78.0°C to 12.0°C? (Sp. heat of C,H6 (1) = 1.74 J/g•°C) %3D

1. How much heat is released when 165 g of liquid benzene, C6H6 (1), cools from 78.0°C to 12.0°C? (Sp. heat of C,H6 (1) = 1.74 J/g•°C) %3D

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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
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Pls answer number 1 thank you.
1. How much heat is released when 165 g of liquid benzene, CoH6 (1), cools from 78.0°C to 12.0°C? (Sp. heat of C,H6 (1) = 1.74 J/g•°C) 2. If 100. grams of liquid water at 100.°C and 200. grams of water at 20.0°C are mixed in an insulated container, what will the final temperature of the mixture be? (Sp. heat of H2O (1) = 4.18 J/g•°C) 3. Using the Clausius-Clapeyron equation determine the vapor pressure of water at 50.0°C. The molar heat of vaporization of water is 40.7 kJ/mol. 4. The density of ice is less than that of water, which is rare for a solid. Discuss some situations in life that would be different if this were not true. 5. Using a phase diagram, explain why the sublimation of ice is not possible at room temperature.
Transcribed Image Text:1. How much heat is released when 165 g of liquid benzene, CoH6 (1), cools from 78.0°C to 12.0°C? (Sp. heat of C,H6 (1) = 1.74 J/g•°C) 2. If 100. grams of liquid water at 100.°C and 200. grams of water at 20.0°C are mixed in an insulated container, what will the final temperature of the mixture be? (Sp. heat of H2O (1) = 4.18 J/g•°C) 3. Using the Clausius-Clapeyron equation determine the vapor pressure of water at 50.0°C. The molar heat of vaporization of water is 40.7 kJ/mol. 4. The density of ice is less than that of water, which is rare for a solid. Discuss some situations in life that would be different if this were not true. 5. Using a phase diagram, explain why the sublimation of ice is not possible at room temperature.
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