Relating Radius r and Number of G-mers g for Thermodynamics

[yukikokami]

for my thermodynamics class we have a question where we need to graph the evaporation and condensation rates as functions of g, the number of g-mers in our droplet of radius r. but condensation and evaporation are given in terms of r... is there an equation to relate r and g?

i've looked online and found nothing, nor is it in our notes.

cheers!

 

[yukikokami]

hokay, so, we found that g*m=4(pi)r^3*rho.

but now we realized that our E is just C* (the condensation rate at the critical radius r*). which can't be right because that's the same equation as C... we know they aren't equal throughout the entire graph because then every g would produce an r*.

so what's E?