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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 The origin of vapor is presumably Latin with earlier roots in Ancient Greek The origin of the word gas appears to be the Greek word chaos by way of Dutch:
- whats the difference between gas and vapour? [duplicate]
A vapor is a gas in possible equilibrium with its liquid [or solid] at a temperature below its critical T and either in contact with the liquid or at the equilibrium vapor pressure If not at a sufficient pressure to condense and not in contact with the liquid the vapor behaves as a gas [nonideal] and the term becomes colloquial
- physical chemistry - Relationship between vapour pressure and saturated . . .
The air water are at STP and are at equilibrium So the total pressure of the gas phase (water + dry air) is 760 torr 742 torr is dry air and 18 torr is the partial vapor pressure of water The air water mixture has 100% humidity which means that it is saturated with water, hence the term saturated vapor pressure (In other words if the
- physical chemistry - What is the differences between partial pressure . . .
The partial pressure of a gas is the pressure exerted by a gas in the volume occupied by a mixture of gases, while the vapor pressure of a gas is the pressure exerted by a gas over its condensed phase Although : The vapor pressure that a single component in a mixture contributes to the total pressure in the system is called partial 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 By condensing the vapor, you can obtain the same stuff in liquid or solid form Smell on the other hand is a human animal perception
- Why does the pressure sharply increase when the liquid vapor . . .
Ideal gas law applies to the vapor phase and also to supercritical fluids Now, as the temperature is increased, number of particles per volume unit of vapor increases in addition to kinetic energy per particle That's why the graph segment is curved rather than a straight line At $\pu{60^oC}$, there is no longer vapor The liquid has higher
- 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)
- 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)
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