0
$\begingroup$

If a solid substance is pressurized past its critical pressure, what happens? Is the critical pressure only a factor when a substance is over the critical temperature also?

On another note what makes critical fluids special, and what is the distinguishability between critical fluids and super-critical fluids?

$\endgroup$
1
$\begingroup$

I think you misunderstand the definitions.

The critical temperature is the temperature above which no amount of pressure will cause a gas to liquefy.

The critical pressure is the pressure which will cause a gas to liquefy at its critical temperature.

A supercritical fluid is another state of matter. A liquid and a gas phase have been subjected to pressure such that the two phases disappear and only one phase remains.

I don't think critical fluid has any real definition other than perhaps a liquid-gas mixture at the critical point (critical temperature and critical pressure). I think this point would be more theoretical than real. You'd be trying to balance the system on a razor's edge.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.