Strontium sulfide (SrS) is produced by reacting crushed celestine ore with coal according to the following reaction: SrSO4 + c SrS + CO2 The celestine ore contains 83.19 wt% of strontium sulfate (SrS04), the balance being unreactive impurities. The bituminous coal used contains 67 wt% of carbon, the rest being unreactive impurities. 41380 kg of celestine ore and 8955 kg of coal are used to produce crude strontium sulfide. a. Draw and fully label a block diagram of the process. b. Assuming irreversible and complete reduction reaction, identify the excess reactant and percentage excess. c. Determine the amount of crude product (in kg) and its composition (wt%)