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- What is the difference between vapour and gas?
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
- Why vapor pressure is unaffected by change in atmospheric pressure
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?
- physical chemistry - What is the differences between partial pressure . . .
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
- physical chemistry - Why is octane more volatile than water while . . .
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 pressure equals the atmospheric pressure" Volatile substances have higher saturated vapor pressure at a given temperature, than the lesser volatile substances
- thermodynamics - Why do we have water vapor at room temperature and . . .
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 reached in a closed system The molecules in vapor form create a specific vapor pressure at a given temperature, as explained by the kinetic theory of gases
- General rules for deciding volatility - Chemistry Stack Exchange
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 vapor pressure vaporizes more readily than a substance with a lower vapor pressure (Taken from Wikipedia) But this doesn't seem to work--I recall that methanol is less volatile than ethanol I think you
- Question about vapor pressure in solids and liquids
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
- Why is the relationship between vapour pressure and boiling point of . . .
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 point is, amount of vapor above liquid is not constant It grows roughly exponentially with temperature and so does the pressure
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