Abstract
Experimental data on density of (dimethyl sulfoxide + benzene, or toluene, or ethylbenzene, or styrene) were obtained at temperatures (293.15, 303.15, 313.15, 323.15, 333.15, 343.15, 353.15) K and atmospheric pressure by means of a vibrating-tube densimeter. From these data, excess molar volume has been calculated. The computed quantities have been fitted to the fourth-order Redlich–Kister equation to derive the coefficients and estimate the standard error values. It was found that the V m E in the systems studied increases with rising temperature.
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