Osmotic pressure: the pressure that just stops osmosisपरासरण दाब: वह दाब जो परासरण को ठीक रोक देOsmotic pressure: the pressure that just stops osmosis

NCERT Fig 1.10 · Class 12 Chemistry · Chapter 1 · interactive diagram

Parts and what they mean

• Applied pressure = osmotic pressure (π) (लगाया दाब = परासरण दाब (π)) — The excess pressure that must be applied on the solution side to just stop the flow of solvent into it. π = CRT.
• Semipermeable membrane (अर्धपारगम्य झिल्ली) — Only solvent molecules can pass.
• Pure solvent (शुद्ध विलायक) — Would normally flow into the solution.
• Solution (विलयन) — Its osmotic pressure depends only on the number of solute particles (colligative).
• No net flow (कोई शुद्ध प्रवाह नहीं) — At exactly π, solvent goes both ways equally — osmosis is stopped.
• Container (पात्र) — Two compartments separated by the SPM.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 1.10. Report a mistake