Monday, February 8, 2010

True or false? The chemical potential of a pure solid is lower than the chemical potential of the surrounding ?

True or false? At equilibrium, the chemical potential of a pure solid is lower than the chemical potential of the surrounding solution.True or false? The chemical potential of a pure solid is lower than the chemical potential of the surrounding ?
As written, the question makes no sense. There is no such thing as ';the chemical potential of the surrounding solution';. The chemical potential is only defined for the chemical components that make up the system. I will assume that the question was meant to read: ';The chemical potential of a pure solid is lower than the chemical potential of of that component in a solution in equilibrium with it.'; This statement is false. At equilibrium in a multi-phase system (e.g, a liquid solution in equilibrium with a solid), the chemical potential of a component is the same in each of the phases. This is a fundamental condition for equilibrium.
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