Entropy and Energy of Association

Numerous studies have been designed to reveal the entropy and energy of hydrophobic interactions. The simplest approach used in these studies is to investigate the temperature dependence of aggregation in finite-concentration solutions. Skipper reported the first such calculation on methane solutions. Fie observed that aggregation became more favorable as T was increased, indicating that the process is endothermic. Interpretation of this type of study is obfuscated by the contribution of many-body solute-solute effects, however. Smith and co-workers reported the first calculations of the entropy and the 

More recent constant pressure simulations generally agree with results from Smith and co-workers, however, su esting that pressure effects do not change the qualitative conclusions from entropy of association calculations. 

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