Answered: What is the AH of a liquid that has a…

What is the AH of a liquid that has a vapor pressure of 626 torr at 78.4°C and a boiling point of vap 95.2°C at 1 atm? 12.942 J/mol

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

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What is the AH
vap
95.2°C at 1 atm?
of a liquid that has a vapor pressure of 626 torr at 78.4°C and a boiling point of
12.942 J/mol
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Expert Solution

Step 1

Given: Vapor pressure at 78.4 ^oC = 626 torr

And boiling point of liquid at 1 atm = 95.2 ^oC

Since at the boiling point, the vapor pressure is same as the external pressure.

Hence the vapor pressure of the liquid at 95.2 ^oC = 1 atm = 760 torr.

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