water melts at 32 F and boils at 212 F if we change these values into Kelvin then melting point of water is 273.15 K and boiling point is 373.15 kelvin.. for melting it is necessary for ice to get warm so it attains heat 10 F to 32 F... then ice melts but during this temperature remains constant.. the energy required for melting is 333 kJ/Kg K then water is warmed at 305 Kelvin.... :)
