# Thermodynamics Help

1. Apr 7, 2008

### neo2478

1. The problem statement, all variables and given/known data

The equilibrium vapor pressures of liquid gallium are

T(K) 1302 1427 1623
p(torr) 0.01 0.1 1.0

a-Calculate the enthalpy, entropy and Gibbs energy changes for the process
b-Calculate the standard enthalpy, entropy, and Gibbs energy changes for the vapozation of liquid gallium at 1427 K. Under standard conditions the pressure of the gallium is 1 bar. Will liquid gallium 1427 K spontaneously form vapor with a pressu of 1 bar?

$$Ga(l) \rightarrow Ga(g, 0.1 torr)$$

at 1427 K.

Heres what I derived so far

$$dG=Vdp dG=\frac{RT}{p}dp \Delta G=RTln\frac{p_2}{p_1}$$

I'm not sure how to get $$p_1$$ to solve for $$\Delta G$$

Last edited: Apr 7, 2008
2. Apr 9, 2008

### neo2478

I have solved this problem. It was quite simple actually.
If anyone wants me to post the solution, just let me know.

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