1. A→P second order liquid phase reaction is to be carried out in a jacketed batch reactor for 80% conversion. Initial A composition of 4 m³ reaction mixture is 2.3 mol/L. a) Find the necessary reaction time and heat transfer fluid temperature profile (Tş=f(t)) for T=363 K isothermal operation. b) Find the necessary reaction time and temperature profile of the reaction mixture (T=f(t) under adiabatic conditions, if the initial temperature is To=340 K. c) Discuss all your results. DATA 1° Reaction rate model: -rĄ=8.8x10°exp(-15500/RT) CẠ²; mol/ Lh (R=1.987 cal/mol K) 2° Heat of reaction : - AH= 12,000 cal/mol 3° Heat transfer coefficient for the jacketed reactor: U =130 cal/dm² min °C 4° Avarege physical properties of the mixture: Cp=0.95 cal/g °C p =1.02 g/cm³

The following elementary gas-phase reaction has a rate constant of 20 L⁄mol min at 350 K. A + B → C The reaction is carried out in an isothermal, isobaric PFR at 350 K and 2 atm. The feed is a 30:60:10 mixture of A:B:inert. The feed flow rate of A is 5 mol/min. (a) Determine the PFR volume required to achieve a conversion of 90%. (b) Determine the conversion that could be achieved if the PFR volume were half of the volume calculated in part (a). Give your answer correct to 3 s.f. (c) Present your answers to parts (a) and (b) on a single Levenspiel Plot.

Q2. Consider a fuel which is an equimolar mixture (1 mole each) of propane (C3Hs) and methane (CH4). (a) Write the complete stoichiometric combustion reaction for this fuel with air (b) Determine the stoichiometric A/F ratio of this fuel (C) Estimate the maximum flame temperature using average specific heat cp at 1200 K. Assume the boiler using this fuel operates at 1 atm and the reactants enter at 298 K. AH(C3H8) -103,847 kJ/kmol. AHCHA)-74,831 kJ/kmol AH (H20) =-241,847 kJ/kmol, AH'r(co2) - 393,546 kJ/kmol, CP120-43.87 kJ/kmol.K Cpco2 = 56.20 kJ/kmol.K. Cps2 = 33.71 kJ/kmol.K

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