Put a bottle of water inside your refrigerator and let it cool down. After that, take it out and notice how the surface of the bottle becomes moist. That is water.
Because water vapour contains the latent heat of evaporation which is released back into the air when water condenses. It is this heat that drives the storms.
Water vapour.
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.
Specific humidity is the mass of water vapor present in a unit mass of air. It is expressed in grams of water vapor per kilogram of air. Relative humidity is the ratio of the amount of water vapor present in the air to the maximum amount of water vapor the air can hold at a given temperature, expressed as a percentage.
- The lowest layer (about 15 km from the ground) - Contains normal air composed of N2, O2, water vapour, CO2, etc.
you would say the air was humid
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.
Contains normal air composed of N2, O2, water vapour, CO2, etc.
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.
Ordinary room air will have only about 4% of water vapour in it, but this can increase quite a lot before the air feels uncomfortable.Relative Humidity is the usual measure of the amount of water vapour in the air, and can vary from a few% (normal) to over 90% (humid). At 90%, the air is NOT 90% water vapour; that figure indicates that the air contains 90% of the amount of water vapour it could contain when fully saturated.For very low percentages of water vapour in the air, (say below 1%) a useful measure and one more easily made, is to measure the dew point of the air. For this, the instrument contains a small shiny mirror that may be cooled to the point where dew just forms on the mirror surface, thus spoiling the reflection.
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.
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.
because it condenses into water when your hot breath is exhaled onto a cold object.
Water vapour is not completely a gas.It contains a lot of water.But it can also be said as a gas........
In addition to gases air contains: dust particles, water vapour, pollen grains, particulate pollutants etc.
Because water vapour contains the latent heat of evaporation which is released back into the air when water condenses. It is this heat that drives the storms.
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