How much thermal energy is removed from 60 grams of steam at 100C to change it into 60 grams of water at 20C? 5. A 200.-gram sample of water at 60C is heated to steam at 140C. How much thermal energy is absorbed? 6. How much thermal energy is needed to change 300. grams of ice at -30C to steam at 130C? 7. How much thermal energy is required to convert 50.0 g of water at 10C to steam at 110C? 8. How much thermal energy is required to heat a 100. g sample of liquid water from 20C to 95C? 9. How much thermal energy is required to boil a 250g sample of water? Assume the water is already at its boiling point