1. The problem statement, all variables and given/known data Estimate the vapor pressure of mercury at 25 ∘C (use data from Appendix D from the textbook). 2. Relevant equations Using the appendix I can find ΔG, ΔH, and ΔS. 3. The attempt at a solution I have no idea where to start. I think that maybe vapor pressure would be found when ΔG=0, but I'm not certian of that. How could I use this information to find the vapor pressure?