Q.
The osmotic pressure of 0.2 molar solution of urea at 27oC (R =0.082 L atm mol-1 K-1) is.
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a
4.92 atm
b
1 atm
c
0.2 atm
d
27 atm
answer is A.
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Detailed Solution
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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