0
The density of dry air is higher than the density of water vapor.
Using the ideal gas equation,
p=(rho)(R*/M)T
rho = pM/(R*T)
M is the molecular weight of the substance.
The average molecular weight of air is 28.8 g/mole, while for water vapor it's 18 g/mole, so dry air is more dense than water vapor by a factor of 28.8/18.
What else can I help you with?
What refers to the amount of water vapour in the air?
Relative Humidity is the measure of water vapour in air. It is the ratio of the actual water vapour in air divided by the maximum amount the water the air can hold at the existing temperature and pressure. It tells how fast or slow the water on the body or in clothes will evaporate or in otherwords is the air dry or humid. Absolute measure of water vapour in air is called specific humidity. It can be measured as ratio of mass of water and mass of dry air.
How does snow happen?
Snow forms when water vapor in the atmosphere freezes into ice crystals. These ice crystals then combine to form snowflakes. When these snowflakes become heavy enough, they fall to the ground as snow.
Is water vapor nitrogen?
No, water vapor is not nitrogen. Water vapor is the gaseous form of water, while nitrogen is a separate element that is found in the atmosphere as a gas. Water vapor is a result of the evaporation of liquid water, while nitrogen is a naturally occurring element in the air we breathe.
What is moistness or dampness in the air called?
It is called "humidity".
Does warm humid air feel warmer than warm dry air?
NO! Definitely not.Humid means more water vapour, more water vapour, more heat loss as water vapour is still water and it can conduct heat away from the air and warm dRy air is just warm air basically. =3
How do you know that water vapour is present in the air?
it will often be in the form of steam so it will be thicker and heavier
Why can you see clouds but not water vapour in the air?
It is because water vapour is air so it can't be seen but when we breath out in the mirror,water vapour is found.
What refers to the amount of water vapour in the air?
Relative Humidity is the measure of water vapour in air. It is the ratio of the actual water vapour in air divided by the maximum amount the water the air can hold at the existing temperature and pressure. It tells how fast or slow the water on the body or in clothes will evaporate or in otherwords is the air dry or humid. Absolute measure of water vapour in air is called specific humidity. It can be measured as ratio of mass of water and mass of dry air.
What is occurring when you can see your breath on cold days?
The air that you exhale contains water vapour. When you exhale during a cold day, the relative humidity increases. Relative humidity is actually the percentage of the amount of water vapour in the air.(the maximum amount of water vapour that the air can hold at that temperature) The colder the air, the less water vapour it can carry. When exhaled, air mixes with cold air, the temperature of the exhaled air drops, but there is more water vapour. When the air becomes saturated, (relative humidity is 100%), the extra water vapour will condense, allowing you to see your breathe on cold days.
Is water vapour not one of the constituents in air?
Water vapour is a constituents in air because water vapour rises in the atmosphere & is always present in the atmospere in some or the other quantity.Also 0.0001% of air consist water vapour
What is the name for gaseous water in the air?
water vapour
What is the name for the water gas in the air?
Water vapour.
What type of solution is air?
Water vapour is a solution in air.
What type of solution of air?
Water vapour is a solution in air.
What is the percent of water vapour in the air?
0.082
What in the air is responsible for rainfall?
Water vapour
How is relative humidity affect by air temperature?
Warmer air is able to hold more water vapour than cooler air. As warm humid air cools, the water vapour condenses out as water droplets.
