Li_2SO_4-K_2SO_4-MgSO_4-H_2O体系及次级体系298.15K时的热化学研究

Thermochemistry of Li_2SO_4-K_2SO_4-MgSO_4-H_2O System and Subsystems at 298.15K

用连续滴定量热法研究Li_2SO_4-K_2SO_4-MgSO_4-H_2O体系及次级体系Li_2SO_4-K_2SO_4-H_2O、Li_2SO_4-MgSO_4-H_2O和K_2SO_4-MgSO_4-H_2O_298.15K时在离子强度为15～0.1范围内的比热容和稀释热,并结合Debye-Hückel)焓极限公式研究离子强度在15～0.0001范围内的表观摩尔焓.

The heats of dilution and heat capacities of system Li2SO4-K2SO4-MgSO4-H2O and subsystems Li2SO4-K2SO4-H2O, Li2SO4-MgSO4-H2O and K2SO4-MgSO4-H2O were measured to cover ionic strength range from 15 to 0.1 at 298.15K. The data of the heat of dilution were extrapolated to infinite dilution by use of the Debye-Huckel liminting law to obtain relative apparent molal enthalpies over the ionic strength range 15-0.0001.