A 0.2 kg piece of unknown metal is heated to 87 °C and then dropped into a 0.28 kg sample of water at 22°C. If the final temperature of the mixture is 24°C, what is the specific heat of the unknown metal?
The specific heat of the metal is
The heat transferred from the hot metal, is equal to the heat absorbed by the cold water.
For the cold water,
For the metal