An ideal solution was obtained by mixing methanol and ethanol. If the partial vapour pressure of methanol and ethanol are $2.619 \, kPa$ and $4.556 \, kPa$ respectively,the composition of the vapour (in terms of mole fraction) will be
- A$0.635$ methanol,$0.365$ ethanol
- B$0.365$ methanol,$0.635$ ethanol
- C$0.574$ methanol,$0.326$ ethanol
- D$0.173$ methanol,$0.827$ ethanol
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Formation of a solution from two components can be considered as
$(i)$ Pure solvent $\to$ separated solvent molecules $\Delta H_1$
$(ii)$ Pure solute $\to$ separated solute molecules $\Delta H_2$
$(iii)$ Separated solvent and solute molecules $\to$ solution $\Delta H_3$
Solution so formed will be ideal if
$(i)$ Pure solvent $\to$ separated solvent molecules $\Delta H_1$
$(ii)$ Pure solute $\to$ separated solute molecules $\Delta H_2$
$(iii)$ Separated solvent and solute molecules $\to$ solution $\Delta H_3$
Solution so formed will be ideal if
MediumAIPMT 2003
View SolutionWhich of the following is not correct?
Two liquids $A$ and $B$ form an ideal solution at temperature $T \ K$. At $T \ K$, the vapour pressures of pure $A$ and $B$ are $55 \ kNm^{-2}$ and $15 \ kNm^{-2}$ respectively. What is the mole fraction of $A$ in the solution of $A$ and $B$ in equilibrium with a vapour in which the mole fraction of $A$ is $0.8$?
DifficultJEE MAIN 2026
View SolutionWhich of the following will form an ideal solution?
Easy
View SolutionIdentify the mixture that shows positive deviations from Raoult's Law.
DifficultJEE MAIN 2024
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