(a) for the solidification of iron, calculate the critical radius r* and the activation free energy δg* if nucleation is homogeneous. values for the latent heat of fusion and surface free energy are –1.85 × 109 j/m3 and 0.204 j/m2, respectively. use the supercooling value δt = 273 k, and the melting point of iron is 1538°c.

Explanation:

given data:

latent heat of fusion

surface free energy = 0.204 j/m2

meltinf point = 1538 degree celcius

critical radius is given as

activation free energy is given as

answer:

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explanation:

answer:

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