Consult Figures 10.26,10.28, and 10.29. Which phase or...

Consult Figures $10.26,10.28,$ and 10.29.
Which phase or phases of water exist under the following conditions?
a. 2.0 atm and $50^{\circ} \mathrm{C}$
b. 0.10 atm and $300^{\circ} \mathrm{C}$
c. 1 atm and $0^{\circ} \mathrm{C}$

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Key Concepts

Phase Diagram

A phase diagram is a graphical representation that maps the physical states of a substance—such as solid, liquid, and gas—based on temperature and pressure conditions. It is used to understand the equilibrium between different phases, showing the boundaries where phase transitions occur and the conditions required for each state to exist.

Triple Point

The triple point on a phase diagram is the unique set of conditions where all three phases (solid, liquid, and gas) can coexist in equilibrium. This point is critical because it provides a reference condition for the properties of a substance and helps in understanding the phase behavior under various conditions.

Critical Point

The critical point is the end point of the liquid–gas phase boundary in a phase diagram. At this point, the properties of the liquid and gas phases become indistinguishable, resulting in a supercritical fluid where the distinct phases merge into one.

Phase Equilibrium

Phase equilibrium refers to the state where multiple phases coexist without net change in their proportions, due to balanced forces among the phases. In a phase diagram, the lines separating the phases indicate the equilibrium conditions at which phase transitions, such as melting, vaporization, or sublimation, occur.

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