Solutions – advanced and special cases - Flash calculations at constant pressure and temperature

3 important questions on Solutions – advanced and special cases - Flash calculations at constant pressure and temperature

When can a flash calculation be preformed?

When operating between the bubble and dew points.

How can the partition coefficient be related to pressure?


Considering Raoult's law:

When is it not possible to find a solution with the flash calculation according to the Rachford-Rice method?


The method can only be applied when there are two phases present in the system.

The system is entirely liquid when:
The system is entirely vapor when:

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