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Item Enthalpy of Mixing of n-Hexane and Cyclohexane(Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1973, 69 (2), 1973) Ahmed, AkhlaqThe enthalpy of mixing (HE) was measured for the liquids n-hexane and cyclohexane at 298.03 K. HE was corrected to 298.15 K for comparison with the results of other workers. The values of HE are well established with an uncertainty of about ± 1.5 J mol–1 by the several sets of recent measurements. In view of the reproducibility of these measurements and of the small temperature-coefficient, this system can be recommended as an international standard for checking mixing calorimeters.