Molal Heat of Vaporization in Solution and Colligative properties Formulas

Molal Heat of Vaporization is the energy needed to vaporize one mole of a liquid. And is denoted by ΔH_v. Molal Heat of Vaporization is usually measured using the KiloJoule Per Mole for Energy Per Mole. Note that the value of Molal Heat of Vaporization is always negative.

Solution and Colligative properties formulas that make use of Molal Heat of Vaporization

fxMolar Vapor Volume given rate of pressure changeGo

fxSolvent Molecular Weight in Boiling Point ElevationGo

fxSolvent Boiling Point in Boiling Point ElevationGo

fxMolal Liquid Volume given rate of pressure changeGo

fxChange in Pressure using Clausius EquationGo

FAQ

What is the Molal Heat of Vaporization?

Molal Heat of Vaporization is the energy needed to vaporize one mole of a liquid. Molal Heat of Vaporization is usually measured using the KiloJoule Per Mole for Energy Per Mole. Note that the value of Molal Heat of Vaporization is always negative.

Can the Molal Heat of Vaporization be negative?

Yes, the Molal Heat of Vaporization, measured in Energy Per Mole can be negative.

What unit is used to measure Molal Heat of Vaporization?

Molal Heat of Vaporization is usually measured using the KiloJoule Per Mole[KJ/mol] for Energy Per Mole. Joule Per Mole[KJ/mol], Kilocalorie Per Mole[KJ/mol] are the few other units in which Molal Heat of Vaporization can be measured.

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