Question

A 1.50 kg sample of water at 15.0°C is in a calorimeter. You drop a piece of steel with a mass of 0.380 kg at 230°C into it. After the sizzling subsides, what is the final equilibrium temperature (in °C)? (Make the reasonable assumptions that any steam produced condenses into liquid water during the process of equilibration and that the evaporation and condensation don't affect the outcome.)

(I attempted and got 16.3 which was incorrect)

Answer 1