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Benzene and toluene form an ideal solution. The vapour pressure of benzene and toluene are respectively 75mm and 22mm at 20^(@)C. If the mole fractions of benzene and toluene in vapour are 0.63 and 0.37 respectively, calculate the vapour pressure of the ideal mixture. |
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Answer» <P> Solution :SINCE the mole fractions of the components GIVEN in the problem are of the vapour which is in equilibrium with the ideal mixture, we have,`(1)/(p)=(x_(A).)/(p_(A)^(0))+(x_(B).)/(p_(B)^(0))` …………..(Eqn.5) `(1)/(p)=(0.63)/(75)+(0.37)/(22)` `p=39.65mm` |
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