... group contributions from Table 2-5 and experimental values fromAppendix A, the results are:Property/Butanol 1-butanol2-methyl-1-propanol2-methyl-2-propanol 2-butanolTc,KExperimental 563.05 ... Pc, and Vcfor the four butanols using Marrero and Pardillo’smethod.solution The Atom / Group Pairs for the butanols are:Pair # Atom /Group Pair 1-butanol2-methyl-1-propanol2-methyl-2-propanol ... are:Groups/Butanol 1-butanol2-methyl-1-propanol2-methyl-2-propanol 2-butanol# First-Order groups, Nk—— ——CH312 32CH231 01CH 0 1 0 1C0010OH 1 1 1 1Second-Order groups, Mj—— ——(CH3)2CH...