enthalpy of vaporization

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• Enthalpy of vaporization — The enthalpy of vaporization, (symbol Delta{} {v}H), also known as the heat of vaporization or heat of evaporation, is the energy required to transform a given quantity of a substance into a gas. It is measured at the normal boiling point of the… …   Wikipedia

• Enthalpy — Thermodynamics …   Wikipedia

• Enthalpy of fusion — The standard enthalpy of fusion (symbol: Delta{}H {fus}), also known as the heat of fusion or specific melting heat, is the amount of thermal energy which must be absorbed or evolved for 1 mole of a substance to change states from a solid to a… …   Wikipedia

• Heats of vaporization of the elements (data page) — …   Wikipedia

• Entropy of vaporization — The entropy of vaporization is the increase in entropy when vaporizing a substance. This is always positive since the degree of disorder increases in the transition from an organized crystalline solid or a slightly less organized liquid to the… …   Wikipedia

• heat of vaporization — the enthalpy change at constant temperature and pressure in converting a unit amount of a substance from the liquid to the gas state, usually specified in cal/g or cal/mol. Called also latent h. of vaporization …   Medical dictionary

• Thermodynamic temperature — is the absolute measure of temperature and is one of the principal parameters of thermodynamics. Thermodynamic temperature is an “absolute” scale because it is the measure of the fundamental property underlying temperature: its null or zero point …   Wikipedia

• Clausius–Clapeyron relation — The Clausius–Clapeyron relation, named after Rudolf Clausius and Benoît Paul Émile Clapeyron, who defined it sometime after 1834, is a way of characterizing a discontinuous phase transition between two phases of matter. On a pressure–temperature… …   Wikipedia

• Clausius-Clapeyron relation — The Clausius Clapeyron relation, named after Rudolf Clausius and Émile Clapeyron, is a way of characterizing the phase transition between two phases of matter, such as solid and liquid. It is commonly learned in class. On a pressure temperature… …   Wikipedia

• Trouton's rule — Trouton’s rule states that the entropy of vaporization is almost the same value, about 87 88 J K 1 mol 1, for various kinds of liquids. The entropy of vaporization is defined as the ratio between the enthalpy of vaporization and the boiling… …   Wikipedia

• Boiling point — This article is about the boiling point of liquids. For other uses, see Boiling point (disambiguation). The boiling point of an element or a substance is the temperature at which the vapor pressure of the liquid equals the environmental pressure… …   Wikipedia