Question

4. Explain why 50 g of liquid water at 0°C heats-up more quickly than 50 g of an ice water mixture at 0°C under the same conditions.
5. How much energy (in kilocalories, kcal) is needed to melt 33.8 g of ice at 0.0°C?
6. How much energy (in kilocalories, kcal) is needed to warm 33.8 g of liquid water from 0.0°C to 37.0°C?

PLEASE HELP WITH ALL 3 NUMBERS 4,5,6

Answer 1

4) the ice has to be heated up to above 0c first, as it is continuing to cool the water back toward 0c
5) 0.0338 kcal
(33.8/1000)
6) 1.2506 kcal
((33.8*37.0)/1000)