Question 2 [8 Marks] A second order reaction is carried out at 313 K has an activation energy of 23 000 J/mole and a rate constant is 2.6. For this reaction, at what temperature would the rate triple? What are the units of the rate constant? (NB Use Arrhenius equation) Question 3 [20 Marks] The following liquid-phase reaction is carried out in a semi-batch reactor: A + 2BC The reaction is assumed to be zero order with respect to species A and B, and the specific rate constant is 0.2 mol/dm-min. Initially, the reactor volume is 60 litres and there are 80 moles of species A in the reactor. Thereafter, a concentration of 12 moles per litre of species B is gradually added to the reactor at a volumetric flow rate of 2 litres per minutes. How much time does it take to reach a 50% conversion of species A? (NB: Start from the general mole balance)