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Air is heavier than water vapor.
Under certain condition (same pressure, temperature ...), the molecular mass of water vapor is 18 and the average molecule mass is approximately 29 (because in the air there are many gases with different mass)
Therefore: d(H2O/air) = M(H2O)/M(air) = 18/29 < 1
That means Water vapor is lighter than air, or vice versa.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoYou can estimate by looking at the molar masses.
Water has a molar mass of 18, whereas air has a molar mass of 29 (=(3*28+32)/4).
Thus, water vapour is lighter than air.
For more details, you can have a look at the provided link.
Wiki User
∙ 12y agoSince air is a gas, the intermolecular forces between the molecules are weaker than is water. The molecules are farther apart than in water and thus the same volume of water will have a greater mass and as a result a greater density.
Wiki User
∙ 9y agoNo hydrogen is the lightest element with a relative mass of 2.02 and air has a average relative mass of 28.97 which is more that 14 time heavier.
Wiki User
∙ 15y agoNo, that is why it rises up into the air, rather than hang low across the ground like fog.
Wiki User
∙ 10y agoYes, water vapor is less dense than dry air. This is counterintuitive to a lot of people because water seems "heavy" but water vapor is actually lighter and less dense than dry air.
Wiki User
∙ 13y agoIt ways less.
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Water vapor makes up hat fraction of atmospheric gases?
The amount of water vapor in atmospheric gases is highly variable. More water vapor is found at lower altitudes, at 30,000 feet there is virtually no water vapor. There is a maximum of 4% water vapor in the atmosphere at any time.
How does air pressure affect how much water vapor air can hold?
Warmer air has higher saturation mixing ratios then cold air does. So therefore because of this 100% humidity in cold air is not 100% humidity in warmer air. The warmer the temperature, the more water vapor in the air. The colder the temperature, the less water vapor in the air.
How does water vapor in the air effect the weather?
colder air doesn't collect as much water vapor
What percentage of water vapor is in the earths atmosphere?
The % of water vapor is called Humidity. The attached link will give you more information.
Which gas contributes most to the greenhouse effect?
The most effective "greenhouse" gasses are water vapor and methane. Carbon dioxide is WAY down the list. Fortunately, water vapor's greenhouse effects are self-regulating; as water vapor in the air increases and causes more heat to be trapped, clouds form in the atmosphere and cause more heat to be REFLECTED AWAY. Unfortunately, the scientists who are warning of "global warming" were unable to include this factor in their computer climate models. So they are warning of a danger that does not exist.
Water vapor makes up hat fraction of atmospheric gases?
The amount of water vapor in atmospheric gases is highly variable. More water vapor is found at lower altitudes, at 30,000 feet there is virtually no water vapor. There is a maximum of 4% water vapor in the atmosphere at any time.
How does vapor affect air pressure?
Water Vapor affects pressure because moist air contains many heavy gases such as O2,N2 etc. But less water vapor. Since these gases are heavier than water vapor, it becomes more dense constituting more pressure. So Moist air contains less pressure than Dry Air.
Does air pressure affect water pressure?
Water Vapor affects pressure because moist air contains many heavy gases such as O2,N2 etc. But less water vapor. Since these gases are heavier than water vapor, it becomes more dense constituting more pressure. So Moist air contains less pressure than Dry Air.
What is the relationship between the amount of gases in magma and the explosiveness a volcanic eruption?
The more gases, water vapor and silica there is in magma the bigger the explosiveness of a volcanic eruption.
How is water linked to greenhouse gases?
Water vapor absorbs infrared heat in the atmosphere so it it classed as a greenhouse gas. However, man can not add water to the atmosphere, and water moves in and out of the atmosphere very quickly, so it can't be controlled. The natural water cycle is responsible for the movement of water and water vapor. As carbon dioxide and other greenhouse gases raise the temperature in the atmosphere more water vapor is able to rise into the atmosphere. This circular effect causes more warming than before.
Why metals corrode quickly near the sea?
There's more water vapor and other gases which cause corrosion.In water, they just go faster. -Neo
What kinds of gases are on Earth?
Nitrogen(78%),Oxygen(21%),Carbondioxide(<1%),Argon(<1%) and Water Vapor(<1%) and many more.
Why does dry gas exert more pressure than moist gas?
I wonder who said it did. Did he realise that some gases might weigh more than the water which is contained in moist gases?
How does air pressure affect how much water vapor air can hold?
Warmer air has higher saturation mixing ratios then cold air does. So therefore because of this 100% humidity in cold air is not 100% humidity in warmer air. The warmer the temperature, the more water vapor in the air. The colder the temperature, the less water vapor in the air.
Why the gases are more soluble in cold water than they are in hot water?
gas is more soluble in cold water. In hot water, the molecules are farther apart, leaving room for gas to escape. That's why it's LESS soluble, and why hot water makes clearer ice cubes. Cold water molecules are close together, trapping in the gas and dissolving it. We keep pop in the freezer so the carbonation will last longer.
How does water vapor in the air effect the weather?
colder air doesn't collect as much water vapor
Which is more dense air saturated with water vapor or air unsaturated with water vapor?
Saturated air is more dense.
