Question

A 192-gram piece of copper was heated to 100.0 C in a boiling water bath and then was put into a beaker containing 750 ml of water (density = 1.00 g/ml) at 4.0°C. What is the equilibrium temperature?
a) 24.0°C
b) 32.0°C
c) 50.0°C
d) 75.0°C