When one gram of liquid at its boiling point is changed into water vapor

One gram of liquid water changed into water vapor at its boiling point, energy is required called the heat of vaporization. Water has a heat of vaporization of 40.65 kJ/mol. Hydrogen bonding is present between water molecules so to break this hydrogen bond, heat energy is required.

Explanation:

Energy is required called the heat of vaporization.

Explanation:

Water has a heat of vaporization of 40.65 kJ/mol. Hydrogen bonding is present between water molecules so to break this hydrogen bond, heat energy is required.

i believe it would be the lungs.

i believe the answer is c