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Questions  

The osmotic pressure of 0.2 molar solution of urea at 27oC (R =0.082 L atm mol-1 K-1) is.

a
4.92 atm
b
1 atm
c
0.2 atm
d
27 atm

detailed solution

Correct option is A

Osmotic pressure, π=CRTHere, C=0.2 M R=0.082 atm dm3mol-1K-1 T=27+273K=300 K π=0.2×0.082×300=4.92 atm

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