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Calculate the chemical potential if the molar volume is given as 5 mm3/mol? (Given the value of radius as 4mm and the interfacial energy γ is 8 kJ/mm2?

Calculate the chemical potential if the molar volume is given as 5 mm3/mol? (Given the value of radius as 4mm and the interfacial energy γ is 8 kJ/mm2? Correct Answer 20

The effect of the pressure difference caused by a curved boundary is to create a difference in free energy (ΔG) or chemical potential (Δμ) that drives the atoms across the boundary. In a pure metal ΔG and Δμ are identical and are given by ΔG = 2γV/r. This free energy difference can be thought of as a force pulling the grain boundary towards the grain with the higher free energy.

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