Question

When water heated to a temperture 'x' it gets converted into steam at temperture 'x' by process called 'R'.And when steam at temperture'x' is cooled ,it gets reconverted into water at the same temperture 'x' by process called 's'.what is the process 'r'and 's' know as?how much is the value of 'x' in kelvin?what is the name of t0he energy absorbed during the process 'R'