When water is cooled to a temperature x, it gets converted into ice at temperature x by a process called P. And when ice at temperature x is warmed, it gets reconverted into water at the same temperature x in a process called Q.

(a) What is the value of temperature x in Kelvin?

(b) What is the process P known as?

(c) What is the name of energy released during process P?

(d) What is the process Q known as?

(e) What is the name of energy absorbed during process Q?