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= What is low air density? = well, high or low are relative concepts. Normally the standard air density of the air is defined as the density of the air at 15ºC and at sea level pressure (standard conditions), what give a value of 1,225kg/m3. This way, we can talk about high or low air density related to the standard value. Air density depends on temperature and pressure. The colder the temperature the higher the density is, and the higher the height in the atmosphere the lower the density becomes. In the Everest peak, e.g., air density can be lower than 0,5. Meanwhile in the Antarctica (at sea level) the density could reach values higher than 1,5.
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Why does a change in density of the air make the balloon ascend?
A gas of low density has the tendence to ascend.
Does carbon dioxide has high or lower density than air?
Carbon dioxide is more dense than air.
Does the air above the Arctic Circle rise because it has low density and low pressure?
yes
Does the air above the north pole or south pole rise because it has low density and low pressure?
low pressure
Why is aluminum used for door handles?
Aluminium is cheap, is not toxic, has a low density, it is not corroded in air.
How do changes in temperature of air affect its density?
if it is high the density is high so if the temperature is low the density is low.
What do changes in density cause air movement?
Low density air rises, higher density air moves in to take its place.
Does air have a low density?
yes
Does air have a very low density?
Compared to liquids and solids, yes a very low density.
What is pressure in air?
warm air is low densitycool air is high density
Is the density in warm air high or low?
As temperature increases, density decreases.
What is the movement of air from an area of low air pressure to high air pressure?
density
Why does a change in density of the air make the balloon ascend?
A gas of low density has the tendence to ascend.
When the air in a balloon is heated what happens to the density?
it becomes low
Does carbon dioxide has high or lower density than air?
Carbon dioxide is more dense than air.
Does the air above the Arctic Circle rise because it has low density and low pressure?
yes
Does the air above the north pole or south pole rise because it has low density and low pressure?
low pressure
