Relationship between the internal pressure and cohesive energy density of a liquid nonelectrolyte. Consequences of application of Dack’s concept

Dack’s concept that correlates internal pressure with cohesive energy density of a liquid system is shown to be applicable to identification of energy and structural changes in series of alkanols: MeOH, EtOH, n-PrOH, (i-PrOH), and n-BuOH, (t-BuOH). The side chain of methyl groups that appears in the molecule loosens the structural packing of the alkanol, creating additional steric hindrances for stable hydrogen bonds in alcohol media.