A calorimetry* measurement is done to identify the composition of a metal medal of mass 200g covered in a very thin layer of paint. The metal is heated to 90 C then dropped carefully into 50 g water at 20 C. The temperature of the system then stabilizes at 27 C. Use the values below to try and identify the material and comment on your result. (6 marks] Assume a thermally isolated system and ignore the thermal properties of the paint. And pay attention to significant figures! Specific Heats of Metals - Lead 1281i'kg K - Gold 129 Jfkg K . Copper 385 Jr'kg K - Iron 449 Jfkg K - Water 41901fkg K *Calorimetry is often used to measure the heat transfer in or out of a system where we suspect a chemical reaction or a physical transformation has taken place. Jodie has used it to measure the tiny amounts of heat given off when a disordered phase of silicon undergoes a processes called 'relaxation' where is changes to become a more ordered. but still totally random. structure