The discussion revolves around setting up a thermodynamic cycle to determine the enthalpy of hydration of Mg2+ ions. Participants explore the relationships between various enthalpies related to the processes involved in hydration, including sublimation, ionization, and solution enthalpies.
Participants express uncertainty about the completeness of the information provided and whether all relevant processes are accounted for in relation to Mg2+ hydration. There is no consensus on how to proceed with the thermodynamic cycle.
There may be missing assumptions regarding the relationships between the various enthalpies and the specific steps needed to complete the thermodynamic cycle.
yeah, the solvation enthalpy, from solid to liquid, then the enthalpy of Cl- in the solution. The change of the enthalpy in the cycle should be 0, but how to find the difference in the MgCl2(s) and the gas phases?Borek said:
Looks like there is something missing here.