the force exerted on the earth’s surface by the weight of the air above it

a line graph that represents the phase change of matter from a gas to a liquid and then to a solid

the conversion of a gas/vapor to a liquid through cooling

a phase transition in which a gas transitions to the solid phase without first becoming a liquid

a type of reaction in which heat is absorbed by the system from its surroundings

the heat content of a system at constant pressure

a measure of a system’s disorder

a type of reaction in which heat is exerted by the system to its surroundings

a line graph that represents the phase change of matter from a solid to a liquid and then to a gas

energy that a body possesses by virtue of being in motion

the amount of heat necessary to melt 1.00 mole of a substance at its melting point

the amount of heat necessary to vaporize 1.00 mole of a substance at its boiling point

a type of chart used to show conditions (pressure, temperature, volume, etc.) at which thermodynamically distinct phases (such as solid, liquid or gaseous states) occur and coexist at equilibrium.

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

the amount of heat required to raise one gram of a substance by one degree Celsius

a phase transition in which a solid transitions to the gas phase without first becoming a liquid

the temperature and pressure at which the solid, liquid, and gas phases coexist

the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system

a graph of vapor pressure as a function of temperature