The recent meaning of vapor from OED, "Vapor: In modern scientific use, a fluid that fills a space like a gas but, being below its critical temperature, can be liquefied by pressure alone." This is clear enough. Now apply this distinction to your phase diagram and notice the position of the critical point.
By definition vapor pressure seems the pressure of vapor ABOVE the liquid which is in equilibrium with liquid and how the hell we are applying the concept of vapor pressure in open container while discussing boiling?
At room temperature and 1 atm pressure liquid water should be a compressed liquid. Now if that is the case then why do we have water vapor at these conditions? I can't make sense of this based on j...
The equilibrium vapor pressure varies with temperature because of two factors - 1)kinetic energy of particles and 2) number density. Both increase non-negligibly with temperature.
Vapor pressure or equilibrium vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system.
I've been reading about vapor pressure and it's a bit confusing. For example when water is in equilibrium between the solid and liquid phase, my textbook says that the vapor pressure is equal betwe...
The partial pressure of vapor is approximately equal to (saturated) vapor pressure and the pressure difference to external pressure is compensated by partial pressure of the system air. If the mass transfer is faster than evaporation, the open system does not reach saturation and vapor partial pressure is smaller than (saturated) vapor pressure.
thermodynamics - Does the term "vapor pressure" even mean anything in ...
Yes, the transition to increased vapor is described by the boiling picture since there is a disequilibrium between the pressure within the fluid and outside (the external or applied pressure). This is not the same as saying that the vapor pressure is not at equilibrium (which it isn't, but that alone will not lead to bubbles within the liquid).
There is confusion between vapor pressure (of ice) and atmospheric (ambient total) pressure. The link describes a freeze drying process, where a vacuum pump is used to reduce ambient pressure. The purpose of reduced pressure is to enable H2O vapor to be removed more quickly by removing air molecules which hinder diffusion. With regard to clothes drying, sublimation of ice will be hastened by a ...