PLEASE DRAW (the flowchart in part A) AND SOLVE (both A and B with full steps )

Q2: The oxidation of nitric oxide is: NO + 02 - N03. It takes place in an isothermal batch reactor with 90% conversion of NO. The reactor is charged with a mixture containing 20 mol% NO and the balance air. a) Draw a labeled flow chart for the process b) Determine the molar compositions of the products, using extent of reaction method