1.

Calculate the osmotic pressure of 0.25 M urea solution at 27^(@)C temp. (R=0.082 lit.at./mole K, R = 1.987 K cal.)

Answer»

0.0615 atmosphere
61.5 atmosphere
6.15 atmosphere
0.615 atmosphere

Solution :Osmotic PRESSURE `PI = (WRT)/(MV)`
`= (W)/(MV)XX RT`
`= C xx RT`
`= 0.25xx0.082xx300`
= 6.15 atmosphere


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