CAN WATER BOILS AT 100◦C?

             The boiling point of water depends on the air pressure in the surrounding environment, which changes the thermal energy (temperature) required for water to reach the corresponding vapour pressure.
            Under low pressures, water boils at temperatures below 100◦C .Under high pressures, water boils at temperatures above 100◦C. This is the principle behind using pressure cooking to cook food more rapidly. At a pressure of above 1atm(above standard atmospheric pressure) the temperature of boiling water is over 120◦C.

NOTE

    VAPOUR PRESSURE is a measure of the tendency of a material to change into the gaseous or vapour state, and it increases with temperature.

     The temperature at which the vapour pressure at the surface of a liquid becomes equal to the pressure exerted by the surroundings is called the boiling point of the liquid.