Question

Which of the following is a good definition for enthalpy of vaporization? 1. The rate at which atoms or molecules enter the gas phase 2. The amount of energy required to convert 1 mole of a substance from the liquid phase to the gas phase 3. The temperature at which the liquid and gas phases of a substance are in equilibrium 4. The pressure exerted by atoms or molecules as they enter the gas phase

Answer 1

Answer:2 is the correct answer

Step-by-step explanation:

Enthalpy of vaporization is the amount of energy that must be added to a liquid substance to transform that substance into gas.