A mass of 50 g of a certain metal at 150∘C is immersed in 100 g of water at 11∘C. The final temperature is 20∘C. Calculate the specific heat capacity of the metal. Assume that the specific heat capacity of water is 4.2 J g−1 K−1.
Heat lost by the metal = Heat gained by water
⇒mmSmΔTm=mwSwΔTw⇒50×Sm×(423−293)=100×4.2×(293−284)⇒Sm=0.582 Jg−1K−1