A spherical reactor with a steel wall of 5 [mm], K = 17 [w/m.K] and inner diameter of Di = 1 [m] is filled with a reactant fluid that generates 10000[W/m3] heat. The reactant density is 1100 [Kg/m3]...

A spherical reactor with a steel wall of 5 [mm], K = 17 [w/m.K] and inner diameter of Di = 1 [m] is filled with a reactant fluid that generates 10000[W/m3] heat. The reactant density is 1100 [Kg/m3] and thermal capacity c = 2400 [j/Kg.K]. The initial temperature of the reactant fluid and the outside ambient temperatures are both 25 [C]. What is the temperature of the reactant after 5 hours if the ambient air convection coefficient is 6 [W/m2.K