Consider the liquid-phase cis-trans isomerisation of 2-butene CH CH3 H CH3 C=C C=C H H H cis-2-butene trans-2-butene written symbolically as AB. The reaction is carried out isothermally in a CSTR. The 1 reaction rate is - = kC with k=0.23 at 298 K. The entering concentration of A min mol (C) is 0.5 The reactor is operated at 298 K. (a) Derive an equation relating the reactor volume (V) to the entering and exiting concentrations of A (CAO and C), the rate constant (k), and the entering volumetric flow rate (v.). [5 Marks] (b) Determine the reactor volume required to reduce the exiting concentration to 20% of the entering concentration if the entering volumetric flow rate is 10 [5 Marks] min (c) How would your answer to Part (b) change if the exiting concentration is to be reduced to 2% of the entering concentration? Explain your answer. [5 Marks] (d) Suppose the reaction is carried out in a 2000-L CSTR. Show that there are trade-offs between entering volumetric flow rate and conversion. Write a paragraph describing what you find. Note: This is an open-ended problem. There are many answers that could be considered. Marking of this question will be done based on how you express/present your answer. [10 Marks] CH3