It takes 1 kcal to raise the temperature of 1 kg of liquid water by 1 C, but only 0.5 kcal to raise the temperature of 1 kg of ice or water vapor by 1 C. Also, it takes 80 kcal to melt 1 kg of ice sitting at 0 C, and 540 kcal to evaporate 1 kg of liquid water sitting at 100 C. How much heat is required to evaporate 3 kg of liquid water at 100 C? How much heat is required to melt 3 kg of ice at 0 C? How much heat is required to raise the temperature of 3 kg of liquid water by 30 C? Tries 0/2 Post Discussion