Question

at what temperature in the Kelvin scale does water boil? explain what happens when we supply heat energy to water till it changes its state, what is this heat energy called?

Answer 1

373 Kelvin
the heat energy responsible for change in state of water to steam is called LATENT HEAT OF VAPOURISATION

Answer 2

at 373k water boil the heat energy supply till change of its state is absorbed by the container in the form of latent heat