The specific enthalpy of vaporization (usually represented by the letter H with a carat above it) is generally given as units of energy per unit mass or per mole. If given in terms of per unit mass, the mass boiled can be calculated by dividing the energy input by the specific enthalpy. If given in terms of per mole, first divide the energy by the specific enthalpy then multiply the result by the mass per mole.
When liquid molecules absorb enough heat energy, evaporation occurs.
1kJ x 1/Hvap x g/mol liquid
thermol
They are the same energy but relate to the processes in different directions. Condensation= gas-->liquid. Vaporization=liquid-->gas. One energy should be the negative of the other.
The latent heat of vaporization is what is commonly referred to as boiling. This is the amount of energy require to change from a state of liquid to vapor.
This process is called vaporization.
The energy needed to go from a liquid to a gas is referred to as heat of vaporization.
AnswerHeat of vaporization.
heat of vaporization
When liquid molecules absorb enough heat energy, evaporation occurs.
1kJ x 1/Hvap x g/mol liquid
1kJ x 1/Hvap x g/mol liquid
thermol
They are the same energy but relate to the processes in different directions. Condensation= gas-->liquid. Vaporization=liquid-->gas. One energy should be the negative of the other.
The amount of energy required to turn a mole of a liquid into a gas
heat of vaporization
vaporization