Temperature Problems... Confused!! please help! How much heat must be taken away from 400 grams of steam at 200 degrees to change it into water at 100 degrees? (Teacher says answer is -985,000 J) How much heat must be absorbed by 1 kg of ice at -20 degrees Celcius to change it to steam at 130 degrees? (Answer is 3,100,000 J) If someone could please show me how to work out these problems, it would be wonderful!!!!! Thank you so much!!!