View Single Post
Old 2008-09-24, 16:40   #2
ewmayer
2ω=0
 
ewmayer's Avatar
 
Sep 2002
Rep├║blica de California

2D5716 Posts
Default

Assuming I've had sufficient coffee this morning...

nRT = (P + (an^2)/V^2)*(V-nb), find the partial V respect to T

Rescaling to lump all the constants into a minimal set [for the purpose of the partial w.r.to T, I presume that everything but V and T are constants]:

T = (b + 1/V^2)*(V-c). Differentiate both side w.r.to T to get, using dV as shorthand for "partial of V w.r.to T":

1 = (b - 2*dV/V^3)*(V-c) + (b + 1/V^2)*(dV-c), now just rearrange to isolate dV.

You can do it with all the original constants carried through.
ewmayer is offline   Reply With Quote