140. Choose the statements that correctly describe the following phase diagram. 2.0 100 200 300 400 T (K) a. If the temperature is raised from 50 K to 400 K at a pres- sure of 1 atm, the substance boils at approximately 185 K. b. The liquid phase of this substance cannot exist under conditions of 2 atm at any temperature. c. The triple point occurs at approximately 165 K. d. At a pressure of 1.5 atm, the melting point of the sub- stance is approximately 370 K. e. The critical point occurs at approximately 1.7 atm and 410 K. P (atm) 1.0

140. Choose the statements that correctly describe the following phase diagram. 2.0 100 200 300 400 T (K) a. If the temperature is raised from 50 K to 400 K at a pres- sure of 1 atm, the substance boils at approximately 185 K. b. The liquid phase of this substance cannot exist under conditions of 2 atm at any temperature. c. The triple point occurs at approximately 165 K. d. At a pressure of 1.5 atm, the melting point of the sub- stance is approximately 370 K. e. The critical point occurs at approximately 1.7 atm and 410 K. P (atm) 1.0

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

Chapter10: Liquids And Solids

Section: Chapter Questions

Problem 140CWP

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Concept explainers

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.

Question

140. Choose the statements that correctly describe the following
phase diagram.
2.0
100
200
300
400
T (K)
a. If the temperature is raised from 50 K to 400 K at a pres-
sure of 1 atm, the substance boils at approximately 185 K.
b. The liquid phase of this substance cannot exist under
conditions of 2 atm at any temperature.
c. The triple point occurs at approximately 165 K.
d. At a pressure of 1.5 atm, the melting point of the sub-
stance is approximately 370 K.
e. The critical point occurs at approximately 1.7 atm and
410 K.
P (atm)
1.0

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