A \(40 \mathrm{~kg}\) block of iron casting at \(625 \mathrm{~K}\) is dropped into a well-insulated vessel containing \(160 \mathrm{~kg}\) of water at \(276 \mathrm{~K}\). Calculate the entropy change for (a) the iron block, (b) the water and (c) the entire process. Assume that the specific heat of iron is \(0.45 \mathrm{~kJ} / \mathrm{kg}-\mathrm{K}\) and that of water is \(4.185 \mathrm{~kJ} / \mathrm{kg}-\mathrm{K}\).