Consider taking a 5kg block of ice at 80cC, and heating up until you have that same 5kg of water as steam at 200C You can divide this process into 5 steps. Which one of these required the most a Here are Cs(ice)=2030//kBK Cs(water)=4184J/kgKCs(steam)=2080J/kgKfusionH=333kJ/kg vapourizationH=2257kJ/kg Heating ice from 80C to its melting point. Melting the ice. Heating water to its boiling point. Boiling the water to form steam. Heating the steam to 200C