please answer part C

and here is example 1-2

(c) Revisit Example 1-2. Calculate the time to reduce the number of moles of A to 1% of its initial value in a constant-volume batch reactor for the same reaction and data in Example 1-2. Suggest two ways to work this problem incorrectly. Consider the liquid phase cis - trans isomerization of 2-butene which we will write symbolically as AB The reaction is first order in A(rA=kCA) and is carried out in a tubular reactor in which the volumetric flow rate, v, is constant, i.e., v=v0. 1. Sketch the concentration profile. 2. Derive an equation relating the reactor volume to the entering and exiting concentrations of A, the rate constant k, and the volumetric flow rate v0. 3. Determine the reactor volume, V1, necessary to reduce the exiting concentration to 10% of the entering concentration, i.e., CA=0.1CA0, when the volumetric flow rate is 10dm3/min (i.e., liters /min ) and the specific reaction rate, k, is 0.23min1