Answer:
Mass of liquid water at 100 Celsius (given) = m=2 kg=2000 g m = 2 k g = 2000 g.
Step-by-step explanation:
Enthalpy of Vaporization:
Many substances can exist in the liquid or gas phase (state) depending on the temperature and pressure conditions present. The enthalpy of vaporization is the amount of heat energy you must provide from the surroundings at constant pressure, to one unit mass (grams or moles) of a substance in the liquid phase, to transform it into the gas phase. This is always a relatively large positive value because the gas phase has the vast majority of its attractive intermolecular interactions broken relative to the liquid phase.