[s.p.q.r]

Hi,

Im not a chem student and hardly know anything about it, so perhaps you can help.
When a gas is heated to an extremely hot tempreture, it exands, but does it keep on expanding as the heat increases or does it reach a point and stop expanding?

Then, will there be different expansion levels with real gases and ideal gases?
I know some gases will explode under imense heat without ignition.

Thanks in advance.

[Yggdrasil]

At a constant pressure, an ideal gas will keep on expanding as you raise the temperature.

[billnotgatez]

http://en.wikipedia.org/wiki/Ideal_gas

http://en.wikipedia.org/wiki/Ideal_gas_law

[s.p.q.r]

At a constant pressure, an ideal gas will keep on expanding as you raise the temperature.

Constant pressure? What in the hoo ha is that? What if it was in a pressurised container? Would the pressure keep building up?

Thanks.

[Yggdrasil]

If the gas is inside a container with fixed volume, the gas can't expand without breaking the container.  In this case, raising the temperature of the gas will raise the pressure of the gas inside the  container.

You can see why this is by looking at the ideal gas law (through the links posted by billnotgatez).  The ideal gas law states that:

PV = nRT

So, if you increase T (temperature), then P (pressure) and/or V (volume) must increase as well in order to make both sides of the equation equal.

[s.p.q.r]

OK. Thanks for all the help. This answers my question.

Cheers.