Please answer it perfectly , dont upload any previous solution , just answer all the parts to the point

I will surely upvote your efforts

Q1: Distillation column is used to separate n-butane, n-pentane, n-hexane from n-heptane and n-octane, the distillation column operates at 1.2 atm with reflux ratio 1.5. The feed is precooled so that it enters the column with a molar condensation ratio equal to 1. Composition (mole/h) of the feed, top and bottom are recorded in the following Table. Components Feed Top flow Bottom flow rate(mol/h) alij (mol/h) rate (mol/h) n-butane 15 15 0 4.2 n-pentane 22 22 0 3.8 n-hexane 25 24 1 2.0 n-heptane 36 6 30 1.0 n-octane 38 0 38 0.38 [1.0 mark] (i) Identify the key and non-key components. (ii) Calculate minimum number of stages using Fenske's equation [1.0 mark] (iii) Determine the number of ideal stage if reflux ratio is 1.3 Rmin using Gilliland's equation [2.0 marks]