The following liquids, all at atmospheric pressure and 40C, are mixed: (1) 25 kg of pure water, (2) 40 kg of pure sulfuric acid, and (3) 75 kg of 25 wt% sulfuric acid. a) How much heat needs to be removed if mixing is performed isothermally at 40C? b) Suppose that the mixing process is carried out in two steps: First, the pure sulfuric acid and the 25 wt% solution are mixed isothermally at 40C, followed by the second step whereby pure water is added adiabatically into the intermediate solution obtained in the first step. What is the temperature of the final solution formed after the second step?