Under what conditions does boil start? What is the heat supplied to the liquid spent during boiling from the point

Under what conditions does boil start? What is the heat supplied to the liquid spent during boiling from the point of view of the molecular kinetic theory?

Boiling begins at a temperature at which the saturated vapor pressure in the bubbles becomes equal and becomes slightly higher than the pressure in the liquid.
During boiling, the heat supplied to the liquid from the point of view of the molecular kinetic theory is spent on the processes of vaporization.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.