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1. The vapor pressure of water at 25C is 23.76 torr. If 1.25g of water is enclosed in a 1.5L container, will any liquid be present? If so, what mass of liquid?

1. The vapor pressure of water at 25C is 23.76 torr. If 1.25g of water is enclosed in a 1.5L container, will any liquid be present? If so, what mass of liquid?

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter8: Molecules And Materials
Section: Chapter Questions
Problem 8.87PAE: 8.87 Use the vapor pressure curves illustrated here to answer the questions that follow. (a) What is...
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1. The vapor pressure of water at 25C is 23.76 torr. If 1.25g of water is enclosed in a 1.5L container, will any liquid be present? If so, what mass of liquid? 2. Draw a heating curve (such as the one in Figure 12.36) for 1 mole of methanol beginning at 170K and ending at 350K. Assume that the values given here are constant over the relevant temperature ranges. 3. The heat of combustion of CH4 is 890.4 kj/mol, and the heat capacity of H₂0 is 75.2 J/molK. Find the volume of methane measured at 298K and 1.00 atm required to convert 1.00L of water at 298 K to water vapor at 373K. 4. Suggest an explanation for the observation that the heat of fusion of a substance is always smaller than its heat of vaporization.
Transcribed Image Text:1. The vapor pressure of water at 25C is 23.76 torr. If 1.25g of water is enclosed in a 1.5L container, will any liquid be present? If so, what mass of liquid? 2. Draw a heating curve (such as the one in Figure 12.36) for 1 mole of methanol beginning at 170K and ending at 350K. Assume that the values given here are constant over the relevant temperature ranges. 3. The heat of combustion of CH4 is 890.4 kj/mol, and the heat capacity of H₂0 is 75.2 J/molK. Find the volume of methane measured at 298K and 1.00 atm required to convert 1.00L of water at 298 K to water vapor at 373K. 4. Suggest an explanation for the observation that the heat of fusion of a substance is always smaller than its heat of vaporization.
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