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| a substance that can flow and therefore take the shape of its container |
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| a force that tends to pull adjacent parts of a liquid's surface together, thereby decreasing surfacce area to the smallest possible size |
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| the attraction of the surface of a liquid to the surface of a solid. |
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| the process by which a liquid or solid changes to a gas |
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| is the process by which particles escape from the surface of a nonboiling liquid and enter the gas state. |
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| the physical change of a liquid to a solid by removal of heat |
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| most solids that consist of crystals |
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| is one in which the particles are arranged randomly |
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| is the physical change of a solid to a liquid by the addition of heat |
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| temperature at which a solid becomes a liquid |
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| which are substances that retrain certain liquid properties even at temperatures at which they appear to be a solid |
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| total three dimensional arrangement of particles of a crystal |
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| the smallest portion of a crystal lattice that shows the three dimensional pattern of the entire lattice |
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| is a dynamic condition in wich two opposing changes occur at equal rates in a closed system |
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| is any part of a system that has uniform composition and properties |
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| is the process by which a gas changes to a liquid |
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| when a system at equilibrium is disturbed by application of a stress, it attains a new equilibrium positron that minimizes the stress |
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| equilibrium vapor pressure |
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Definition
| the pressure exerted by a vapor in equilibrium with its corresponding luiquid at a given temperature |
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Definition
| which are liquids that evaporate readily |
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| is the conversion of a liquid to a vapor within the liquid as well as at its surface. It occurs when the equilibrium vapor pressure of the liquid equals the atmospheric pressure |
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| is the temperature at which the equilibrium vapor pressure of the liquid equals the atmosphereic pressure |
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| molar heat of vaporization |
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Definition
| the amount of heat energy needed to vaporize one mole of liquid at its boiling point |
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| is the temperature at which the solid and liquid are in equilibrium at 1atm pressure |
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| the amount of heat energy required to melt one mole of solid at its melting point |
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| the change of state from a solid directly to a gas |
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| the change of state from a gas directly to a solid |
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| is a graph of pressure versus temperature that shows the conditions under which the phases of a substance exist |
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| of a substance indicates the temperature and pressure conditions at which the solid, liquid, and vapor of the substance can coexist at equilibrium |
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| of a substance indicates the critical temperature and critical pressure |
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| is the temperature above which the substance cannot exist in liquid state |
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| is the lowest pressure at which the substance can exist as a liquid at the critical temperature |
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