Consider a sphere shaped bead that is self-reactive and produces heat by a chemical reaction at a constant rate QG (W/m3). Assume that the sphere is surrounded by air that is kept constant at Tair. Considering uni-directional heat transfer.

a Write the shell balance for the system

b Find the temperature profile as a function of r for the sphere

Consider a sphere shaped bead that is self-reactive and produces heat by a chemical reaction at a constant rate QG(W/m3). Assume that the sphere is surrounded by air that is kept constant at Tair.. Considering uni-directional heat transfer. a. Write the shell balance for the system b. Find the temperature profile as a function of r for the sphere