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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
- physical chemistry - Relationship between vapour pressure and saturated . . .
I need clarity on saturated vapour pressure in a closed system at equilibrium How does saturated vapour pressure relate to vapour pressure?
- evaporation - What is the difference between smell odor and vapor . . .
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
- vapor pressure - What is the difference between volatility and . . .
A measure of volatility is the vapor pressure There is a very related term partial pressure So if we think of air as being nitrogen and oxygen, then there is a partial pressure for nitrogen and a partial pressure for oxygen, and the sum of the two partial pressure is the actual pressure (the absolute pressure)
- Why does the vapour pressure not depend on the surface area and volume . . .
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 liquid and the rate of colliding with the liquid surface and so re-entering, become equal When this happens the vapour pressure becomes constant
- How to arrange substances in order of increasing vapor pressure?
In Raoult's law, the vapor pressure of a fluid is lowered proportionally with the mole fraction of solute particles in the fluid You know the formula, but you only need it if you want to calculate the actual resulting vapor pressure
- General rules for deciding volatility - Chemistry Stack Exchange
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 have got this wrong
- How to calculate the vapour density of a mixture?
Was it safe to assume that the amount of substance of mixture equals that of the amount of substance of both the gases? Amount of substance is additive, just like mass You have to be careful with volume, though So yes, it is safe to make that assumption I have to figure out the vapour density of the mixture I'm not sure you are starting with a safe question, i e if the vapour density
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