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The phase diagram for the pure substance X is shown at right. The temperature of a sample of pure solid X is slowly raised from 10°C to 100°C at a constant pressure of 0.5 atm. 1.5 What is the expected behavior of the substance? 1.0 А. It first melts to a liquid and then boils at about 70°C. В. It first melts to a liquid and then boils at about 30°C. 0.5 It melts to a liquid at a temperature of about 20°C and remains a liquid until the temperature is greater than 100°C. С. 0 20 40 60 80 100 D. It sublimes to vapor at an equilibrium temperature of about 20° C. Temperature (°C) Pressure (atm)

The phase diagram for the pure substance X is shown at right. The temperature of a sample of pure solid X is slowly raised from 10°C to 100°C at a constant pressure of 0.5 atm. 1.5 What is the expected behavior of the substance? 1.0 А. It first melts to a liquid and then boils at about 70°C. В. It first melts to a liquid and then boils at about 30°C. 0.5 It melts to a liquid at a temperature of about 20°C and remains a liquid until the temperature is greater than 100°C. С. 0 20 40 60 80 100 D. It sublimes to vapor at an equilibrium temperature of about 20° C. Temperature (°C) Pressure (atm)

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter9: Liquids, Solids, And Materials
Section: Chapter Questions
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The phase diagram for the pure substance X is shown at right. The temperature of a sample of pure solid X is slowly raised from 10°C to 100°C at a constant pressure of 0.5 atm. 1.5 What is the expected behavior of the substance? 1.0 А. It first melts to a liquid and then boils at about 70°C. В. It first melts to a liquid and then boils at about 30°C. 0.5 It melts to a liquid at a temperature of about 20°C and remains a liquid until the temperature is greater than 100°C. С. 0 20 40 60 80 100 D. It sublimes to vapor at an equilibrium temperature of about 20° C. Temperature (°C) Pressure (atm)
Transcribed Image Text:The phase diagram for the pure substance X is shown at right. The temperature of a sample of pure solid X is slowly raised from 10°C to 100°C at a constant pressure of 0.5 atm. 1.5 What is the expected behavior of the substance? 1.0 А. It first melts to a liquid and then boils at about 70°C. В. It first melts to a liquid and then boils at about 30°C. 0.5 It melts to a liquid at a temperature of about 20°C and remains a liquid until the temperature is greater than 100°C. С. 0 20 40 60 80 100 D. It sublimes to vapor at an equilibrium temperature of about 20° C. Temperature (°C) Pressure (atm)
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