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  1. 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 assumption.

  2. evaporation - What is the difference between "smell/odor" and "vapor ...

    Nov 30, 2022 · 1 What is the difference between "smell/odor" and "vapor" of a substance? It is assumed that the vapor of a given compound/element is the gas phase of the same pure compound/element. …

  3. thermodynamics - Why do we have water vapor at room temperature …

    May 6, 2024 · 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 reached in a …

  4. What is the differences between partial pressure and vapour pressure?

    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 in a …

  5. Question about vapor pressure in solids and liquids

    Jun 14, 2023 · 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 …

  6. Why do water and ice have the same vapor pressure at 0 °C?

    Jan 19, 2025 · 5 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 equal at the …

  7. 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 open …

  8. 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 substance with higher …

  9. thermodynamics - Does the term "vapor pressure" even mean …

    Sep 25, 2023 · 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 …

  10. In a perfect vacuum, shouldn't every solid be above its sublimation ...

    Sep 30, 2024 · 15 If the sublimation point of a substance is the point where its equilibrium vapor pressure exceeds the pressure of the atmosphere upon it, and if every solid above absolute zero has …