Calculateur de Pression Osmotique
Calculez la pression osmotique d'une solution.
M
C
Osmotic Pressure
2.447 atm
Osmotic Pressure247.9 kPa
Osmotic Pressure vs Van't Hoff Factor (i)
Formule
## How to Calculate Osmotic Pressure ### Formula **pi = i × M × R × T** Where R = 0.08206 L-atm/mol-K and T is in Kelvin.
Exemple Résolu
0.1 M glucose at 25C (i=1).
- 01T = 25 + 273.15 = 298.15 K
- 02pi = 1 × 0.1 × 0.08206 × 298.15
- 03pi = 2.447 atm
Questions Fréquentes
What is osmotic pressure?
The minimum pressure needed to prevent solvent flow through a semipermeable membrane from dilute to concentrated side.
Why is the gas constant used?
The van't Hoff equation has the same form as the ideal gas law, so R provides the correct unit conversion.
Where is osmotic pressure important?
Biology (cell membranes), medicine (IV fluids), and engineering (reverse osmosis).
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