1.

If M,W and V represents molar mass of solute, mass of solute and volume of solution in litres respectively, which among following equations is true?

Answer»

`pi = (MWR)/(TV)`
`pi = (TMR)(WV)`
`pi = (TMR)/(VM)`
`pi = (TRV)/(WM)`

Solution :ACCORDING to van'f Hoff solution equation
`pi V = n RT` but `n = W/M`
Hence `pi V = W/M RT` or `pi = (WRT)/(MV)`


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