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

2 is the correct answer

Explanation:

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

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

explanation: