Sentences with phrase «lighter than cold air»

Warm air holds more moisture, it is less dense so lighter than cold air.

If everything else is equal, hot air is lighter than cold air.

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.

As cold sweetwater can be lighter than not so cold saltwater, the colder sweetwater spreads on the surface and brings a cooling of the air over those large areas.

The air at the top of the troposphere is colder than the air at the ground because of a. water vapor b. expansion of gas c. light energy d. ozone

The declining density gradient with height (caused by gravity) permits lighter, warmer air to rise further away from the surface than can colder, heavier air at the same upward pressure gradient force.

Carbon dioxide is fully part of that water cycle where water heated by the thermal infrared direct from the Sun evaporates and anyway lighter than air rises in air and takes away heat from the surface — all pure clean rain is carbonic acid, the water vapour spontaneously joining with carbon dioxide in the atmosphere releases its heat in the colder heights and condenses out back into liquid water and ice, cooling the Earth from the 67 °C it would be without the water cycle.

Firstly convection of the real gas Air which when heated becomes lighter than air and rises taking away heat from the surface and as it rises heavier colder air above flows beneath to take its place; these are called winds, volumes of air on the moAir which when heated becomes lighter than air and rises taking away heat from the surface and as it rises heavier colder air above flows beneath to take its place; these are called winds, volumes of air on the moair and rises taking away heat from the surface and as it rises heavier colder air above flows beneath to take its place; these are called winds, volumes of air on the moair above flows beneath to take its place; these are called winds, volumes of air on the moair on the move.

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.

They use the energy in expansion which makes them lighter, they don't move anywhere unless the amount of heat energy is sufficient to make them lighter than air in which case they will rise through the fluid gas around them, and, the molecules around them which are colder therefore heavier will sink below them.

, 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.

So, deal gas with no actual volume has nothing to expand and condense which which is how we get convection as heated real gases mainly nitrogen and oxygen and water expand becoming lighter than air and so rise which spontaneously makes colder heavier real gases sink — in the fluid medium they comprise.

Ideal gas which has no mass therefore no weight under gravity because there is nothing on which gravity can pull; which has no volume therefore does not expand or condense changing its weight under reduced and increased pressure or heat and cold and so does not become lighter or heavier than air under gravity; with no attraction therefore merely capable of bouncing off another and not capable of undergoing chemical changes, such as water and carbon dioxide in the atmosphere forming carbonic acid.