For the solidification of pure gold, calculate the critical radius (r*) and the activation freeenergy (\Delta...

For the solidification of pure gold, calculate the critical radius (r*) and the activation freeenergy (\Delta G?G*). Assume homogeneous nucleation conditions. The values of the latent heat of fusion and the surface free energy are -1.16x109 J/m3 and 0.132 J/m2, respectively. The degree of supercooling is 230 K and the melting point of gold is 1064 oC.

Expert Solution

samet mamat answered 2 years ago

Please prove that in homogeneous nucleation of solidification the critical radius and activation energy are ???...

Please prove that in homogeneous nucleation of solidification the critical radius and activation energy are ??? = (? 2??????) ( 1 ) and ???? = (16????3????2 ) 1 , respectively, ????? ??? 3?????2 ???2 in which ? is the surface free energy, Tm is the melting temperature, ?T is the degree of supercooling (Tm - T), and ?Hf is the latent heat of fusion.

Please prove that in homogeneous nucleation of solidification the critical radius and activation energy are ??...

Please prove that in homogeneous nucleation of solidification the critical radius and activation energy are ?? ? = (? 2?????? ????? ) ( 1 ??? ) and ??? ? = ( 16???? 3???? 2 3????? 2 ) 1 ???2 , respectively, in which ? is the surface free energy, Tm is the melting temperature, ?T is the degree of supercooling (Tm - T), and ?Hf is the latent heat of fusion.

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