Question

Why is osmotic pressure of l M KCl is higher than that of l M urea solution?

Answer 1

Answer:

Osmotic pressure of 1 m higher than 1 m urea solution as osmotic pressure is a colligative property which depends on the amount of solute. being a electrolyte, it dissociate into ions in aqueous solution whereas urea does not. Thus the number of moles will be more on addition of KCl and lesser number of moles on addition of urea

(π)=CRT

(π= osmotic pressure

C= concentration

R= solution constant

T= temperature

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