Interpretation: The phase diagram that corresponds to a substance, which liquefies when pressure is increased below its freezing point is to be identified.
Concept introduction:
A phase diagram is a graph that represents the solid, liquid, and gaseous phases of a substance at different pressures and temperatures.
The lines are the boundaries between two phases and represent the conditions under which the two phases are in equilibrium.
At triple point, the three-phase boundaries meet each other.
The temperature at which a substance changes to vapor phase from a liquid phase at 1 atmis the normal boiling point.
The temperature at which a substance changes to liquid phase from a solidphase at 1 atmis the normal melting point
The temperature at which a substance changes to solid phase from a liquidphase at 1 atmis the normal freezing point.
Want to see the full answer?
Check out a sample textbook solutionChapter 11 Solutions
Chemistry
- Use Figure 11.7 to estimate the boiling point of carbon tetrachloride, CCl4, under an external pressure of 250 mmHg.arrow_forwardConsider a substance X with a Hvap = 20.3 kJ/mol and Hfus = 9.0 kJ/mol. The melting point, freezing point, and heat capacities of both the solid and liquid X are identical to those of water. a If you place one beaker containing 50 g of X at 10C and another beaker with 50 g of H2O at 10C on a hot plate and start heating them, which material will reach the boiling point first? b Which of the materials from part a, X or H2O, would completely boil away first? c On a piece of graph paper, draw the heating curve for H2O and X. How do the heating curves reflect your answers from parts a and b?arrow_forwardWhich of the following substances can be liquefied by applying pressure at 25C? For those that cannot, describe the conditions under which they can be liquefied. Substance Critical Temperature Critical Pressure Sulfur dioxide, SO2 158C 78 atm Acetylene, C2H2 36C 62 atm Methane. CH4 82C 46 atm Carbon monoxide, CO 140C 35 atmarrow_forward
- White phosphorus, P4, is normally a white, waxy solid melting at 44C to a colorless liquid. The liquid has a vapor pressure of 400.0 mmHg at 251.0C and 760.0 mmHg at 280.0C. What is the heat of vaporization of this substance?arrow_forwardIs it possible to liquefy nitrogen at room temperature (about 25 C)? Is it possible to liquefy sulfur dioxide at room temperature? Explain your answers.arrow_forwardA special vessel (see Fig. 10.45) contains ice and supercooled water (both at 10C) connected by vapor space. Describe what happens to the amounts of ice and water as time passes.arrow_forward
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning