Heat Of Vaporization Definition

Heat of vaporization synonyms heat of vaporization pronunciation heat of vaporization translation english dictionary definition of heat of vaporization. The amount of heat required to convert a unit mass of a liquid at its boiling point into vapor without an increase in temperature.

Phase Changes

Two common forms of latent heat are latent heat of fusion and latent heat of vaporization.

Heat of vaporization definition. Heat must be supplied to a solid or liquid to effect vaporization. Also known as enthalpy of vaporization the heat of vaporization h vap is defined by the amount of enthalpy heat energy that is required to transform a liquid substance into a gas or vapor it is measured in joules per mole j mol or sometimes in calories c. These names describe the direction of energy flow when changing from one phase to the next.

The quantity of heat required at a specified temperature to convert unit mass of liquid into vapor. If conditions allow the formation of vapour bubbles within a liquid the vaporization process is called boiling direct conversion from solid to vapour is called sublimation. The heat of vaporization is the heat required to completely vaporize a unit of saturated liquid or condense a unit mass of saturated vapor and it equal to h lg h g h l.

Define heat of vaporization. From solid to liquid and liquid to gas. Heat of vaporization definition.

Vaporization conversion of a substance from the liquid or solid phase into the gaseous vapour phase. Latent heat is energy released or absorbed by a body or a thermodynamic system during a constant temperature process. The amount of heat required to convert a unit mass of a liquid at its boiling point into vapor without an increase in temperature.

Heat of vaporization definition is heat absorbed when a liquid vaporizes. Heat of evaporation synonyms heat of evaporation pronunciation heat of evaporation translation english dictionary definition of heat of evaporation. Equal to the heat of condensation.

The heat of vaporization is the heat required to completely vaporize a unit of saturated liquid or condense a unit mass of saturated vapor and it equal to h lg h g h l. The enthalpy of vaporization is often quoted for the. The heat that is necessary to melt or freeze a unit mass at the substance at constant pressure is the heat of fusion and is equal to h sl h l h s where h s is.

Heat of vaporization definition the heat absorbed per unit mass of a given material at its boiling point that completely converts the material to a gas at the same temperature. The enthalpy of vaporization symbol h vap also known as the latent heat of vaporization or heat of evaporation is the amount of energy that must be added to a liquid substance to transform a quantity of that substance into a gas the enthalpy of vaporization is a function of the pressure at which that transformation takes place. The heat that is necessary to melt or freeze a unit mass at the substance at constant pressure is the heat of fusion and is equal to h sl h l h s where h s is.

Properties Of Liquids