In the problem of Example 4.1, the feed was specified as pentane (C₅H₁₂) with a hydrogen to carbon ratio of 2.4:1. If the feed to the process were a heavy oil, the hydrogen to carbon ratio would be more like 2:1. How would the distribution of C₅ carbon compounds change if the feed had a 2:1 carbon ratio?

Data from example 4.1

When heavy oils are cracked in a catalytic or thermal cracking process, lighter hydrocarbon compounds are formed. Most  cracking processes on heavy oil feeds form products with carbon numbers ranging from two to greater than twenty. How  does the equilibrium distribution of hydrocarbon compounds with five carbons (C5 compounds) change as the temperature  of the cracking process is increased at 200kPa?