Chemistry, 16.04.2020 20:37 reghanhoward3

(a) For the solidification of iron, calculate the critical radius r* and the activation free energy ΔG* when the supercooling temperature is 295 °K. Values for the latent heat of fusion and surface free energy are –1.85 × 109 J/m3 and 0.204 J/m2 , respectively. (b) Now calculate the number of atoms found in a nucleus of critical size. Assume a lattice parameter of 0.292 nm for solid iron at its melting temperature.

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(a) For the solidification of iron, calculate the critical radius r* and the activation free energy...