Question

A 60 gram square of ice melts to water. How much energy is needed for this to happen?​

Answer 1

A more precise figure for the latent head of *fusion* of water is 333.55 kJ/kg. Since you have 5 kg, you will need to pump 333.55 × 5 = 1667.75 kJ of heat into your ice to completely melt it.

Answer 2

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.

Step-by-step explanation: