O Dun 18.25 What is AU when 1.00 mol of liquid water vaporizes at 100°C? The heat of vaporization, AH°, 40.66 kJ/mol. of water at 100°C is vap»
O Dun 18.25 What is AU when 1.00 mol of liquid water vaporizes at 100°C? The heat of vaporization, AH°, 40.66 kJ/mol. of water at 100°C is vap»
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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Question
18.25

Transcribed Image Text:THERMUDYNAMICS
18.23 A gas is cooled and loses 82 J of heat. The
as it cools, and work done on the system equal to 29 J is
exchanged with the surroundings. What are q, w, and AU?
18.25 What is AU when 1.00 mol of liquid water vaporizes at
100°C? The heat of vaporization, AH°,
gas
contracts
of water at 100°C is
vap»
40.66 kJ/mol.
ENTROPY CHANGES
18.27 Chloroform, CHCI3, is a solvent and has been used as
an anesthetic. The heat of vaporization of chloroform at its
boiling point (61.2°C) is 29.6 kJ/mol. What is the entropy
change when 1.20 mol CHC13 vaporizes at its boiling point?
18.29
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