Dalton's Law of Partial Pressures (P_total = sum of partial pressures; Pi = mole fraction × P_total)
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P_total = sum of partial pressures; Pi = mole fraction × P_total
What each symbol means
| Symbol | What it stands for |
|---|---|
| P_i | Partial pressure of gas i |
| x_i | Mole fraction |
| P_total | Total pressure |
When to use this
Ideal gas mixture; uniform T; gases fill same V (or use mole-fraction form).