How much heat is necessary to change 445 g of ice at -10°C to water at 20°C?anwer in kilocaories?

Question

How much heat is necessary to change 445 g of ice at -10°C to water at 20°C?anwer in kilocaories?

Answer 1

You have to do this in steps.

1) Raise the temperature from -10 C to 0 C:

Mass of ice * specific heat of ice * temperature rise

2) Melt the ice:

Mass of ice * Heat of Fusion

3) Raise the temperature from 0 C to 20 C:

Mass of water * specific heat of water * temperature rise

Add the three values.