How to analyse the chemical potential equivalence between water and ions before and after initial trajectory in gromacs??

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Norman Geist

Guess you would asses osmotic pressure by something like Article Simulation of Osmotic Pressure in Concentrated Aqueous Salt Solutions

Ramin Ekhteiari Salmas

If you calculate the variation of Gibbs free energy to the number of ions or water molecules, I suppose you can deal with the chemical potential term. In such matters you may get back to your thermodynamics knowledge - rather than to expect the programs to do it automatically for you.