(a) Calculate the energy needed to raise the temperature of10.0 g of iron from `25^(@)` to `500^(@)C` if specific heat capacity of iron is `0.45 J (^(@C) g^(-1)`.
(b) What mass of gold of specific heat capacity `0.13 J ( .^(@)C)^(-1) g^(-1)` can be heated through the same temperature difference when supplied with the same amount of energy as in (a) ?