when the temperature of the gas rises what happens to the density of the gas"?

Question

when the temperature of the gas rises what happens to the density of the gas"

Answer 1

obinna
When the temp. of a gas rises,its density decreases.

Answer 2

It depends on if the gas can expand.
If it can (like in space or an open room), the density will decrease - the molecules are moving faster and therefore spread out into the available space.
If the gas is in an enclosed vessel, then the density will not change (nowhere for the gas to go).

Answer 3

If the gas is contained in a fixed volume, the density remains the same. If teh volume is allowed to increase, then the density goes down.

Answer 4

If the gas is contained the density remains the same. If the gas is not contained the density decreases

Answer 5

That would depend. If it is free to expand, such as in a balloon, the density decreases. If the gas is confined in a fixed volume, density does not change, although pressure increases.

Answer 6

gas, when not restricted to a specific volume, will maintain pressure and decrease in density when heated: the heat will cause the molecules of the gas to spread more rapidly, increasing the overall volume and thus decreasing the density.

Answer 7

Density= mass/volume
Therefor if the mass or volume changes the density will change, but just raising or lowering the temperature will do nothing.

Answer 8

when the temperature rises , the molecules of gases will travel faster. thus the distance between any molecules will be longer. the volume of the gases , therefore, increase. however its weight remains unchanged. so the density will be decrease

Answer 9

At constant volume, nothing. At constant pressure, it decreases.

Answer 10

Nothing, if it is enclosed. But if free, it will become less dense due to expansion.