Acube-shaped reactor with sides of 4.25 m [inside dimensions] is made of aisi 316 stainless steel (sides and bottom) with a lightweight aluminum alloy (alloy 195, cast) for the top. the reaction carried out inside the
reactor is exothermic, liberating 96.2 w/l of solution (q-dot term). the bottom of the tank rests on a foam
support such that this surface is adiabatic. the four sides and top of the reactor have an external surface
temperature of 32 deg c. the reactor is completely full, so the liquid solution touches all surfaces of the reactor,
including the lid. the stainless steel sides have a uniform thickness of 2.49 cm, and the lid is 1.42 cm thick. the initial temperature on the inside surface of the tank walls is 60.0 deg c
a. what is the net rate of internal energy change for the reaction mixture in the tank as the reaction starts?
(consider both heat generated by the heat of reaction and heat transferred out of the tank by conduction.)
(use negative, if there is a drop in energy)
b. when the reaction starts, will the temperature in the tank rise, fall or stay the same?