Chemistry Forum

Hi,
Can anyone please help me to find the critical point of ammonia (concentration vs temperature) at 20 bar pressure?

Critical Temperature: The temperature which above, a substance can not exist as a liquid, no matter how much pressure is applied. Every substance has a critical temperature.
Critical Pressure: The pressure required to liquify a substance vapor at its critical temperature
Critical point: The end point of the pressure-temperature curve that designates conditions under which a liquid and its vapor can coexist. At higher temperatures, the gas cannot be liquefied by pressure alone. At the critical point, defined by the critical temperature Tc and the critical pressure pc, phase boundaries vanish.

Ammonia (NH₃) 132.4 ° C 112.8 bar

There is no critical point at 20 bar.

Hi, thank you for your reply. I am looking for concentration graph of ammonia at which it stays to condensate at 20 bar.

Concentration in what.