Heat Capacities, Heats of Dilution and Apparent Molal Enthalpies of LiCl-NaCl-KCl-MgCl₂-H₂O Systems at 298. 15K

Heat capacities and heats of dilution of \mathrmLiCl-\mathrmNaCl-\mathrmKCl-\mathrmMgCl_2-\mathrmH_2 \mathrmO systems have been measured in the range of ionic strength from 18 to 0.1 at 298.15 K . The data of the heat of dilution have been extrapolated to infinite dilution by use of the Debye-Hückel limiting law to obtain relative apparent molal enthalpies over the ionic strength from 18 to 0.0001 . The results make clear that the heats of dilution are negative which means that dilution process of various systems are exothermic. When the ionic strength are stronger \cdot the values of heat capacities are smaller and the values of apparent molal enthalipes are greater.