Paraffin wax is an excellent material to store heat, having a specific heat capacity in the liquid phase of 2.9 Jg K- and a heat of fusion of 220 J g1; fusion occurs at 10C. In a home building material, a certain type of wax is infused in the drywall during manufacture so that it melts during the day, absorbing heat, and solidifies again at night, releasing the heat. If the daytime temperature is 35.0C, and the evening temperature drops to exactly the phase change temperature for sufficient time that the phase change is complete, what is the total amount of heat delivered from 40.0 kg paraffin wax, and what is the total entropy change associated with the phase change? 3.7 x 108 J, 8.2 x10 J K-1 3.7 x 108 J, 2.7 x 104 J K-1 1.2 x 107 J, 4.9 x104 J K-1 2.9 x 107 J, 1.5 x 10 J K-1 1.2 x 107 J, 3.1 x104 J K-1