2 replies to this topic

[ATX]

Let’s say I have a 10L cylinder with ammonia gas at 20 bar and 51 deg C. According to phase diagram, at 20 bar ammonia condenses below 50 deg C. Let’s say I cool down the cylinder to 49 deg C. Now all ammonia is liquid (but a small amount is vapor). What is the pressure now inside the cylinder? Is it just the vapor pressure of ammonia which will still be 20 bar? I am confused.

[shvet1]

20 bara

pressure inside of a cylinder equals vapor pressure of a gas it contains whether it is liquid or gaseous

Edited by shvet1, 01 January 2024 - 10:52 PM.

[breizh]

Hi,

To support your work

https://webbook.nist.../m&RefState=DEF

 

Breizh