Unfourtanetly that wasn't correct.
I have been given this information, but I still can't seem to get the correct answer.
1. How much heat in joules is needed to raise the temperature of 7.5 L of water from 0°C to 87.0°C? (Hint: Recall the original definition of the liter.)
2.73e+06 J
2. How much heat is necessary to change 325 g of ice at -20°C to water at 20°C?
change g to kilograms; and to figure the heat here because it is original ice and will need to be melted you will do
The specific heat of ice calculation to get it from -20 to 0 °C + the heat of fusion to melt the ice + the specific heat calculation to raise it to 20°C :
The specific heat of ice is .5kcal/kg*°C
H = m c ice ΔT + mLf + m c ΔT =
.325 kg (.5kcal ) (20°C) + .325 kg (80 kcal) + .325 kg ( 1 kcal) (20°C) = 35.75 kcal
kg *°C Kg kg * °C
