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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
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
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)
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
gas laws - Why can air accommodate more water when the air has a higher . . . The liquid-vapor coexistence line of the phase diagram of water has a positive slope dP dT d P d T Humidity in air is a partial pressure of water vapor If partial pressure of water is increased starting from <100% <100 % humidity, it will reach the vapor-liquid transition and any additional water vapor will simply condense into droplets (= 100% = 100 % humidity) The first-order phase
evaporation - What is the difference between smell odor and vapor . . . 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 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 . . . The correct answer here is B, which I don't exactly understand I understand that the system being a mixture of vapor and liquid at low temperature makes sense, since as the temperature is raised, the vapor pressure of the liquid increases, and the vapor (which there is now more of) exerts more pressure in accordance with the ideal gas law
(At what temperature) can salt evaporate? - Chemistry Stack Exchange The vapor pressure of sodium vapor is approximately 1 08 E-27 Pascals or 1 08 E-32 Bar at 25 C or 298 15 K, slightly above room temperature Vapor pressure is so low that the saturated vapor density is 2 55 E-35 grams cu cm with 99 99 % ClNa and 0 01% Cl2Na2 dimer fraction in the vapor