Question: how much energy is required to melt a 1000 kg block of ice?
Answer: How many Joules of energy do you need to melt all the ice into a pure liquid along the path from B to C on the graph? Answer: For 1 kilogram of ice ,which equals 1000 grams, we need 333 Joules/gram x 1000 grams = 333,000 Joules. Problem 3 - The Specific Heat of liquid water is 4180 Joules/kg C.