Physical · Colligative Properties
Colligative Properties
Exam-focused revision notes on Colligative Properties for CSIR-NET Chemical Sciences, GATE Chemistry and IIT-JAM — the core concepts, the formulas worth memorising, the traps that cost marks, and a quick-recall table.
The core idea
Colligative properties depend only on the number of solute particles — not their identity, size or mass. Add a non-volatile solute and four things change together, all driven by the same cause.
What this note covers
- 1The core idea
- 21. Relative lowering of vapour pressure (Raoult's law)
- 32. Boiling-point elevation
- 43. Freezing-point depression
- 54. Osmotic pressure
- 6van't Hoff factor (i)
- 7Molar mass from colligative data
- 8Common traps students miss
- 930-second recall table
Read the full note
The remaining 8 sections — including the worked examples, the common-traps list and the quick-recall table — are part of ChemVidya Full Access, along with 6,000+ practice questions.
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