1.

Find the osmotic pressure M/20 solution of urea at 27^(@)C (S = 0.0821 lit atm K^(-1) mol^(-1))

Answer»


Solution :`"C(molarity)"=1//20=0.05"MOL L"^(-1),R=0.0821" L ATM K"^(-1)mol^(-1)`
`T=27^(@)C=27+273=300K`
`"Osmotic pressure "(pi)=CRT`
`=(0.05"mol L"^(-1))XX(0.0821" L atm K"^(-1)mol^(-1))xx(300K)=1.2315 atm.`


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