Solve this by 30 minutes plz. Asap

QUESTION 4: (23 Marks) The elementary ineversible gas-phase reaction 2A_B+C is carried out adiabatically in a continuous stirred-tank reactor (CSTR). Pure A enters the reactor at a volumetric flow rate of 20 dm2/s at a temperature of 450 K and a pressure of 10 atm Determine the reactor volume needed for 80% conversion is achieved. Assume that there is no pressure drop. Additional Information CpA = 20 J/mol K Cpg = 25 J/mol K Cpc = 15 J/mol K HA = -70 kJ/mol H = -50 kJ/mol HE = -40 kJ/mol All heat of formations is referenced to 273 K. k=0.133 dm'mol s exp with E = 3.14 kJ/mol -450