How does the temperature of a liquid change from the beginning of boiling to its complete boil-off?

The process of heating a liquid starts from the surface and spreads throughout the entire volume. So there is an active formation of vapor, the liquid begins to boil. To do this, she needs to reach the boiling point. During this process, bubbles containing liquid or air expand, rise to the surface and break off. This causes the liquid to boil off. Different liquids have different boiling points, and the ambient pressure is important. After all, the lower the pressure, the easier it is for the bubbles to float to the surface of the liquid, and as a result, the boiling point will be lower. Therefore, the boiling point does not change, and heat affects the transformation of liquid into vapor. The heat depends on the specific heat of vaporization and the mass of the substance.