THE van OSS–CHAUDHURY–GOOD THERMODYNAMIC APPROACH (ACID-BASE THEORY) FOR THE ESTIMATION OF SURFACE FREE ENERGY OF SOLIDS
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چکیده
It was stated by Paul Tillich in 1929 that “The boundary is the best place for acquiring knowledge” [1]. His quotation comes neither from mineralogy nor from surface chemistry but from theology, and is a reminder that boundaries are the places where changes take place and it is there that processes of change can often be properly understood. In the case of minerals, the boundary is the surface of the mineral; a surface that in nature is also an interface [2], most commonly between the mineral and air, or the mineral and an aqueous fluid (or a melt).
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