The Effect of Pressure on Diffusion in CS2 Organic Mixtures

Diffusion coefficients are presented as a function of pressure to 10 000 atmospheres for the following systems: 50 mol percent n−heptane−50 percent CS2 0∘−20∘−40∘;50 mol percent 2,4 dimethylpentane−50 percent CS2 20∘−40∘;50 mol percent toluene−50 percent CS2 20∘−40∘;50 mol percent methylcyclohexane−50 percent CS2 0∘−20∘−40∘;50 mol percent n−octane−50 percent CS2 20∘C;50 percent chlorobenzene−50 percent CS2 20∘−40∘;80 percent chlorobenzene−20 percent CS2 40∘;50 percent n−butanol−50 percent CS2 20∘−40∘;50 percent iso−butanol−50 percent CS2 20∘−40∘;using S35 tagged CS2. The results are interpreted in terms of the activation volume, enthalpy, and entropy, and conclusions are drawn concerning the effect of pressure on the structure of the liquids.