Sentences with phrase «dense than cold air»

Warm air is more dense than cold air, so it holds more moisture.
Hot air is less dense than cold air, and the hotter the temperature, the more speed a plane needs to lift off.
The air particles speed up, in other words their temperature increases, the hotter air is less dense than colder air above and hence moves up (convection).

Not exact matches

Light travels faster in the hot, thin air close to the road than it does in the cold, dense air above, and that difference in speed is what causes it to shift direction as it crosses the boundary between the two.
Keeps hot air out of intake system and delivers denser air at colder temps than factory air intakes
Cold air is more dense than hot air so itsinks and warm air is less dense so it rises.
Since cold air is more dense, atmospheric pressure decreases more rapidly with height on the poleward side of the polar front than on the warmer tropical side.
Factor in the fact that soils amd water are at least ~ 1000 times more dense than air and the idea that gases can heat warmer surfaces like soils and especially water whilst most of the atmosphere is actually much colder just seems - well — ludicrous.
Warm air holds more moisture, it is less dense so lighter than cold air.
The air around being colder therefore denser and heavier, with more condensed volume, will sink; gravity having less of a grip on the hotter less dense rising expanding lighter volume with less mass than it does on the denser colder heavier with more mass.
A volume of air heated will become less dense expanding in volume and rise because lighter than the air around it which is colder.
, when volumes of air are heated they expand and now lighter than air rise taking away heat from the surface, and colder volumes of air, of the fluid gas air around them, being heavier because colder so more condensed will sink to the surface flowing beneath the volumes of less dense air.
Thus, a lapse rate of -12 K / km would be extremely unstable because the colder air would be denser than the warm air below it.
... similarly dense clouds, if very high, though they equally intercept the communication of the earth with the sky, yet being, from their elevated situation, colder than the earth, will radiate to it less heat than they receive from it, and may, consequently, admit of bodies on its surface becoming several degrees colder than the air.
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