This quantity equals one atmosphere at the normal boiling point, and for a mixture of liquids, this value is the sum of its value for each component according to Raoult's law.
Ambrose et al. showed that between the triple and critical point, this quantity can be expressed with the Chebyshev polynomials. This quantity is higher for a liquid with a curved surface, so the Kelvin equation calculates it for a meniscus or a droplet. It's not concentration, but the activity of a species is its value for this quantity in solution over this quantity for the pure species. The derivative of this quantity's log with respect to (*) temperature is the enthalpy of vaporization over RT squared. This quantity equals one atmosphere at the normal boiling point, and for a mixture of liquids, this value is the sum of its value for each component according to Raoult's law. For 10 points, name this quantity, the pressure exerted by a gas when it is in equilibrium with its liquid form.
Ambrose et al. showed that between the triple and critical point, this quantity can be expressed with the Chebyshev polynomials.
vapor pressure [prompt on "pressure"]