Heat supplied to a solid change it into liquid. What is this change in phase called

1. Heat supplied to a solid change it into liquid. What is this change in phase called?                                                                
2. During the phase change does the average kinetic energy of the molecules of the substance increase?
3. What is the energy absorbed during the phase change called?

Answer

1. Melting
2. No.
3. Latent heat of melting/fusion