Heat And Thermodynamics

A piece of metal at \(850 \mathrm{~K}\) is dropped in to \(1 \mathrm{~kg}\) water at \(300 \mathrm{~K}\). If the equilibrium temperature of water is \(350 \mathrm{~K}\) then the heat capacity of the metal, expressed in \(\mathrm{JK}^{-1}\) is \((1 \mathrm{~cal}=4.2 \mathrm{~J})\)