Solution:
The above statement is true.The liquid X is water, process A is freezing, and process B is vaporization. The liquid X is water as the boiling point of water is 100ºC, and the freezing point of water is 0ºC. Water changes into a solid state through the process of freezing. Freezing means solidification. The temperature of a liquid at which it changes its state from liquid to solid at atmospheric pressure is called the freezing point. Water changes into a gaseous state through the process of vaporization. This process is also called evaporation. It is the process in which a liquid substance changes into a gas rapidly at increasing temperatures. So, the liquid X is water, process A is freezing, and process B is vaporization.
