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Find out the osmotic pressure of 0.25 M ...

Find out the osmotic pressure of 0.25 M aqueous solution of Urea at `27^@ `C. (R = 0.082 Lit. atm./mol. K., R = 1.987 Cal.)

A

0.0615 atmosphere

B

61.5 atmosphere

C

6.15 atmosphere

D

0.615 atmosphere

Text Solution

Verified by Experts

The correct Answer is:
C
Osmotic pressure `pi = (WRT)/(MV)`
`= (W)/(MV)xx RT`
`= C xx RT`
`= 0.25xx0.082xx300`
= 6.15 atmosphere
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