1.

At temperature327^(@)C and concentration C, the osmotic pressure of a solution is P. The same solution at concentration C/2 and a temperature 427^@C ofshows osmotic pressure of 2 atm. The value of P will be :

Answer»

`(12)/(7)`
`(24)/(7)`
`(6)/(5)`
`(5)/(6)`

Solution :`pi V=CRT`
`(pi_(1))/(pi_(2))=(C_(1)RT_(1))/(C_(2)RT_(2))`
`pi_(1)=P, pi_(2)=2` atm. `C_(1)=C, C_(2)=(C )/(2)`
`T_(1)=600K, T_(2)=700 K`
`(P)/(2)=(2xxC xx R XX600)/(C xx R xx 700)`
`P=(24)/(7)`.


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