What is the difference between "vapour" and "gas"?
Apr 19, 2021 · Vapor implies the existence of a condensed phase that is the source or destination of the gas, or with which the gas may be in equilibrium; while gas does not make such an …
Why vapor pressure is unaffected by change in atmospheric pressure
Jul 5, 2021 · 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 …
physical chemistry - What is the differences between partial …
Jan 23, 2014 · 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 …
physical chemistry - Why is octane more volatile than water while ...
Oct 5, 2023 · 14 Octane has a boiling point of 120 °C. Water has a boiling point of 100 °C. The definition of boiling point is, "the temperature which the liquid substance's saturated vapor …
thermodynamics - Why do we have water vapor at room …
May 6, 2024 · 1 Think of molecules of water liquid escaping into vapor, and molecules of water vapor condensing into liquid. Both processes occur simultaneously, and an equilibrium is …
Why is the relationship between vapour pressure and boiling point …
Dec 26, 2023 · 3 If you took out vapor at some moment and if you put it in a container of a fixed volume then its pressure would linearly grow with temperature, as in the Charles' law. The …
General rules for deciding volatility - Chemistry Stack Exchange
May 2, 2012 · In chemistry and physics, volatility is the tendency of a substance to vaporize. Volatility is directly related to a substance's vapor pressure. At a given temperature, a …
gas laws - Why can air accommodate more water when the air has …
The liquid-vapor coexistence line of the phase diagram of water has a positive slope $\mathrm {d}P/\mathrm {d}T$. Humidity in air is a partial pressure of water vapor. If partial pressure of …
Why do water and ice have the same vapor pressure at 0 °C?
Jan 19, 2025 · 4 The phase with higher vapor pressure would evaporate and condense as the other phase. That is why vapor pressure above both substance condensed phases must be …
Why does the vapour pressure not depend on the surface area …
Apr 10, 2023 · I think that you forget about molecules re-entering the liquid from the vapour. Eventually the vapour will come into equilibrium with its liquid and so the rate of leaving the …