van’t Hoff factor (i = ratio of actual particle effect to ideal nonelectrolyte; for full dissociation of NaCl)
jee-mainjee-advancedneet-ug
i = ratio of actual particle effect to ideal nonelectrolyte; for full dissociation of NaCl i→2, CaCl₂ i→3 (ideal)
What each symbol means
| Symbol | What it stands for |
|---|---|
| i | van’t Hoff factor |
| expected | Same formula with i=1 for formula unit as single particle |
| observed | Measured ΔT_b, ΔT_f, π, etc. |
When to use this
Defined relative to ideal nonelectrolyte baseline; accounts for dissociation/association.