1. Extended

In a laboratory at normal room temperature, 200 g of water is poured into a beaker. A thermometer placed in the water has a reading of 22 °C.

Small pieces of ice at 0 °C are added to the water one by one. The mixture is stirred after each addition until the ice has melted. This process is continued until the temperature recorded by the thermometer is 0 °C.

The total mass of ice added to the water is found to be 60 g.

The specific heat capacity of water is 4.2J/(g °C).

Calculate the energy transferred from the water's thermal energy store originally in the beaker.

thermal energy = ...........................................................