Phase diagram is a graphical depiction of the physical says of a substance under different conditions of temperature and also pressure. A usual phase diagram has actually pressure on the y-axis and temperature ~ above the x-axis. As we cross the present or curves on the phase diagram, a phase readjust occurs. In addition, two claims of the problem coexist in equilibrium ~ above the currently or curves.

You are watching: Label the axes, phases, phase changes and important points on the phase diagram below.


A phase shift is the change from one state of matter to another. There space three says of matter: liquid, solid, and also gas.

Liquid: A state of matter that is composed of loose, cost-free moving particles which type the shape collection by the limits of the container in i m sorry the fluid is in. This happens because the activity of the individual particles in ~ a fluid is much less limited than in a solid. One may notice that some liquids circulation readily whereas part liquids circulation slowly. A liquid"s family member resistance to flow is viscosity. Solid: A state of matter with tightly pack particles which execute not readjust the shape or volume that the container the it is in. However, this go not median that the volume the a solid is a constant. Solids deserve to expand and also contract when temperatures change. This is why as soon as you look up the thickness of a solid, the will suggest the temperature at which the worth for thickness is listed. Solids have strong intermolecular pressures that keep particles in nearby proximity come one another. An additional interesting thing to think about is the all true solids have crystalline structures. This means that your particles room arranged in a three-dimensional, orderly pattern. Solids will certainly undergo phase alters when lock come throughout energy changes. Gas: A state of matter where particles room spread out v no definite form or volume. The particles of a gas will certainly take the shape and fill the volume of the container that it is put in. In a gas, there are no intermolecular pressures holding the particles of a gas together due to the fact that each bit travels at its own speed in its very own direction.

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The corpuscle of a gas are frequently separated by good distances.

Phase diagrams highlight the variations between the states of issue of facets or compounds together they relate to pressure and also temperatures. The adhering to is an instance of a step diagram because that a share single-component system:

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Figure (PageIndex2a): phase diagrams for CO2


Figure (PageIndex2b):Phase diagrams for H2O