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Write a short note , Van't Hoff equation...

Write a short note , Van't Hoff equation.

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Van't Hoff found out that for dilute solutions the osmotic pressure is directly proportional to the molar concentration of the solute and the temperature of the solution . He proposed the following equation to calculated osmotic pressure which is now called as van't Hoff equation
` " " pi =cRT`
Here
c = concentration of the solution in molarity
T= =Temperature
R= Gas constant
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