Answer to Question #337486 in Chemical Engineering for Vhadau

Question

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 + 2B → C

The reaction is assumed to be zero order with respect to species A and B, and the specific rate

constant is 0.2 mol/dm3

-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)