Talk:Vapor pressure

I think the last mentioned temperature is not the melting point but the triple point. Is that correct?

Actually, no. When the vapor pressures of liquid and solid are equal only if the two phases (liquid and solid) are in equilibrium. If these pressures are also equal to the total pressure, then the gas phase is in equilibuim, too ( three phase -> triple point) -- Olof

And another question: to which substances does this discussion apply? Wood for instance doesn't have a vapor pressure, does it?

Sure it does. This is why I put wood in the garage for a year before putting it in the fireplace: some of its components ( water ) sublimate. -- Olof

And yet another one: what is the vapor pressure of solid water at 50 degrees Celcius? AxelBoldt

Higher than the vapor pressure of liquid water at 50 degrees Celcius. The fact that we know that it is higher doesn't imply that we are able to actually measure the value.

I've got to admit, though, that this page is quite confusing, and could use a better explanation of all the concepts. -- Olof