Abstract
AbstractThe heats of mixing of the system benzene ‐ 1,2 dichloroethane have been measured at three different temperatures (7.60°C, 25.00°C and 41.85°C) in a calorimeter of conventional design, using large quantities of liquid (350 ml). The apparatus and experimental procedure are described in detail. In the calculation of the heat exchange of the calorimeter with the surroundings, the method described by Coops et al 1) has been used. An elaborated heat‐of‐mixing experiment shows the application of this method to our calorimetric system.The results of each series of experiments have been represented by an equation of the form:ΔH/x (1−x) = a + b (2x−1) + c (2x−1)2 J/mole. The heats of mixing are positive, small and highly temperature‐dependent. They decrease with rising temperature.
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