An insulated beaker by negligible mass contains liquid water by a mass of 0.315kg and a temperature of 65.8C.
How much ice at a temperature of -15.0C should be dropped into the water so that the final temperature of the system will be 28.0C?
Take the specific heat of liquid water to be 4190J/kgK, the specific heat of ice to be 2100J/kgK, and the heat of fusion for water to be 3.34×105J/kg.