I need to know how to cal culate the entalphy of Fluoride adsorption on Ion oxide nano particles is speontaneous. further how can I decide the Gibbs free energy of MgF+ ion par. is it stable in natural conditions?
Chandrika Priyadarshani
Adsorption is a spontaneous process. Otherwise, without your help, fluorine molecules will be adsorbed on metal oxide nanoparticles. You need to determine the equilibrium constant of adsorption at two temperatures, and from these data you can determine the change in enthalpy during adsorption. With the help of the equilibrium constant, you can determine the change in Gibbs energy in the process of adsorption. There are a lot of mistakes in your question. You have to clarify your question.
From enthalpy and free energy change is -ve if the adsorption is a spontaneous process.
I did the experiment at only one temperature. Thus I took langmuire constant as K and Applied Delta G= RTLn K and got the Delts G value. Is it correct
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