Dalton–Raoult: total vapour pressure (ideal binary liquid, both volatile) (Total pressure equals sum of partial vapour pressures from Raoult’s law for each component)
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Total pressure equals sum of partial vapour pressures from Raoult’s law for each component
What each symbol means
| Symbol | What it stands for |
|---|---|
| P_total | Total vapour pressure |
| x_A,x_B | Liquid mole fractions |
| P°_A,P°_B | Pure component vapour pressures at T |
When to use this
Ideal solution; both components volatile; vapour behaves ideally.