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When the concentration of the liquid (water) and gas (vapor) phases do not change.
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What is the equilibrium condition in which a gas holds all the water vapor molecules that it can?
saturated or saturation
What is equilibrium vapor pressure?
It is vapor molecules in equilibrium with a liquid in a closed system exert a pressure proportional to the concentration of molecules in the vapor state.
What is the gas pressure above a liquid at equilibrium called?
Vapor pressure
What is kinetic vapour pressure?
Kinetic vapor pressure which is defined as the pressure exerted when a solid or liquid is at equilibrium with its own vapor.
What is the gas state of water in two words?
Dihydrogen Monoxide.
Is liquid water a water vapor?
No: Vapor is defined as the gas phase of a substance that is mostly solid or liquid at equilibrium at standard temperature and pressure. Therefore, a liquid itself is never a vapor, but the liquid is in equilibrium with a vapor phase that contains the same chemical substance.
What is the name for the air that contains water vapor in equilibrium at a certain temperature?
relative humidity
What is the equilibrium condition in which a gas holds all the water vapor molecules that it can?
saturated or saturation
Does covering water slow down evaporation?
The answer to this problem is not as simple as it seems. When water evaporates, an equilibrium exists between the water vapor and liquid water. Normally, the water vapor is disbursed into the surrounding air, causing the equilibrium to shift in the direction of the water vapor product. By covering the water, the equilibrium is not shifted in this direction. Although the molecules are not evaporating more slowly, more of them reenter the water. Thus, the loss of liquid water slows (or stops if the container is air tight), but the process of evaporation continues at the same speed; its just that the water vapor formed now reenters the solution as just as quickly as it forms.
Why the rate of evaporation increases when the air is less humid?
The System of liquid water and the moisture in the air (water vapor) tends to remain in an equilibrium. So if the air is less humid, the water evaporation process goes forward so as to attain equilibrium, and if the air has already water vapor, then the process becomes less favorable and hence slow.
What causes condinsation in you air ducts?
Condensation commonly occurs when a vapor is cooled. Water vapor from air which naturally condenses on cold surfaces into liquid water is called dew. Water vapor will only condense onto another surface when that surface is cooler than the temperature of the water vapor, or when the water vapor equilibrium in air, i. e. saturation humidity, has been exceeded. When water vapor condenses onto a surface, a net warming occurs on that surface.
Why does the water vapor is present inthe atmosphere?
Here we have the reaction: water(l) <-> water(g) Water in the liquid state must be in equilibrium with the gas phase, so a very small part of this liquid water will pass to the gas state in order to reach a dynamic equilibrium.
What is the relationship between the rate of evaporation and the rate of condensation of the vapor of a liquid in a closed container and has a constant vapor pressure?
In a system at constant vapor pressure, a dynamic equilibrium exists between the vapor and the liquid. The system is in equilibrium because the rate of evaporation of liquid equals the rate of condensation of vapor. -KarkatHorns
What is equilibrium vapor pressure?
It is vapor molecules in equilibrium with a liquid in a closed system exert a pressure proportional to the concentration of molecules in the vapor state.
What has the author John Warren Macan written?
John Warren Macan has written: 'Computer evaluation of binary vapor-liquid equilibrium data' -- subject(s): Vapor-liquid equilibrium
What happens to water when it condenses?
Water can't condense. Condensation is about something turning from a gas to a liquid. Once it has become a liquid it can't be come liquid-er.
What is the gas pressure above a liquid at equilibrium called?
Vapor pressure
