A plant is burning limestone which analyzes 52% CaO, 41% CO2 and 7% inerts using coke that analyzes 90% C and 10% ash. The lime product obtained contains 3% CO2 and 1% unburned C. The top gas shows 24.1% CO2, 1% CO ad 74.9% N2. a. The kg limestone/kg coke is about .

b. The lime-fuel ratio is about .