Why Does Warm Air Rise And Cold Air Sink
Camila Farah
Simply put warm air molecules are more active and thus spaced farther apart warm air is less dense lighter than cooler air and therefore rises.
Because of this the molecules in hot air tend to be further apart on average giving hot air a lower density. Hot and cold air currents power the weather systems on earth. For example at the north pole the air sinks because it is cold. Denser air sinks replacing less dense air.
The cold dry air that sinks becomes warmer and dries out leading to the rise of hot air once again. It does not matter how the co2 got hot it. Hot air is less dense than cold air which is why hot air rises and cold air sinks according to the united states department of energy. The sun warms the surface of the earth and by conduction and convection some of that heat is transferred to the air which is closest to the ground.
What the observation that hot air rises and cold air sinks is really saying is that denser air will sink and less dense air will rise. It is wrong to say that cold air sinks and hot air rises because it doesn t. The molecules in hot air are moving faster than the molecules in cold air. Very often cold air is denser than hot air so it sinks but that is because of.
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The idea that the temperature will affect the circulation of atmospheric pressure can also be attributed to the earth s coordinates. The sun plays a major role in heating the planet which also creates hot and cold air energy systems.
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