Multiple Phases-Mass Transfer

This chapter sets out to provide a means of handling these types of interphase mass transfer problems taking into consideration their fundamental characterizing variables, the conservation of mass, and appropriate constitutive relationships. 

Thedissolutionofeolidparticleolsaltisagoodplacetobeginbecausewealreadyknowquite abit about this process. The solid, say sodium chloride, consists of cations and anions that makeupthesolidlatticeinsome fixedratio.TheCoulombicforcesofattraction—theMadelung 

Quantitatively we also know that the concentration of the ions in solution is givenby theirsolubilityproductor fCsp-Thisisnothingmorethantheequilibriumconstantforthesalt inwater,rearrangedtotakeuptheactivitiesofthepurewaterandthepuresolidsalt  

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