how do i solve these using the appendix C inheat transfer book?

3. A cylindrical CSTR1 chemical reactor inside of which occurs an exothermic chemical reaction; the reaction occurs in region A. The cylindrical reactor's walls are region B, while region C is an insulation layer that is wrapped on the reactor to reduce heat loss to the external environment. The exothermic reaction inside generates heat in a uniform manner within region A at a rate q=3105W/m3. The CSTR is subjected to convective heat transfer with an environment at T=10C and h=20W/m2. K. See figure for dimensions and thermal conductivities. The cylindrical reactor has a height of 10m. At steady-state, and neglecting radiation, determine: (a) The exterior surface temperature of the CSTR. (b) The temperature at the interface between B and C. 3. A cylindrical CSTR1 chemical reactor inside of which occurs an exothermic chemical reaction; the reaction occurs in region A. The cylindrical reactor's walls are region B, while region C is an insulation layer that is wrapped on the reactor to reduce heat loss to the external environment. The exothermic reaction inside generates heat in a uniform manner within region A at a rate q=3105W/m3. The CSTR is subjected to convective heat transfer with an environment at T=10C and h=20W/m2. K. See figure for dimensions and thermal conductivities. The cylindrical reactor has a height of 10m. At steady-state, and neglecting radiation, determine: (a) The exterior surface temperature of the CSTR. (b) The temperature at the interface between B and C