# Classical Nucleation theory two dimensions

1. Mar 12, 2013

### Yoran91

Hi everyone,

I'm having trouble understanding a problem on CNT in 2d.
I'm given the equation

$\Delta G = \frac{4}{3} \pi R^3 \rho_s \Delta \mu + 4\pi R^2 \gamma$

for nucleation in 3d. Here mu is the difference in chemical potential between the solid and liquid phase, R is the radius of the spherical solid that forms, gamma is the surface tension. Now I'm trying to the find the analogous formula for nucleation in 2 dimensions.

What is that equation? I have only found things that produce nonsense.