Which statement about the composition of vapo | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) For an ideal mixture,the partial pressure of a component $i$ in the vapour phase is given by $P_i = P_i^o X_i$.Given the molar ratio is $1:1$,the

Vedclass · Accepted Answer

The vapour will contain higher percentage of benzene

Vedclass · Answer

(A) For an ideal mixture,the partial pressure of a component $i$ in the vapour phase is given by $P_i = P_i^o X_i$.Given the molar ratio is $1:1$,the mole fractions are $X_{benzene} = 0.5$ and $X_{toluene} = 0.5$.The partial pressures are $P_{benzene} = 75 	imes 0.5 = 37.5 \, mm \, Hg$ and $P_{toluene} = 22 	imes 0.5 = 11 \, mm \, Hg$.The mole fraction in the vapour phase is $Y_i = P_i / P_{total}$.Since $P_{benzene} > P_{toluene}$,it follows that $Y_{benzene} > Y_{toluene}$.Therefore,the vapour will contain a higher percentage of benzene.

Which statement about the composition of vapour over an ideal $1:1$ molar mixture of benzene and toluene is correct? Assume the temperature is constant at $25\,^{\circ}C$. Vapour pressure data $(25\,^{\circ}C)$:
Benzene: $75\, mm\, Hg$
Toluene: $22\, mm\, Hg$

Similar Questions

At $88\,^oC$,the vapor pressure of benzene is $900 \, \text{torr}$ and that of toluene is $360 \, \text{torr}$. What is the mole fraction of benzene in the mixture with toluene that will boil at $88\,^oC$ and $1 \, \text{atm}$ pressure,assuming it forms an ideal solution?

Identify the $FALSE$ statement about ideal solutions from the following.

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

$A$ solution that obeys Raoult's law is

Which of the following are correct for an ideal solution?
$(a) \Delta V_{\text{mix}} = 0$
$(b) V_{\text{solvent}} + V_{\text{solute}} = V_{\text{solution}}$
$(c) \Delta H_{\text{mix}} = 0$
$(d) H_2O + CO_2 \rightarrow H_2CO_3$ is an example of an ideal solution.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Which statement about the composition of vapour over an ideal $1:1$ molar mixture of benzene and toluene is correct? Assume the temperature is constant at $25\,^{\circ}C$. Vapour pressure data $(25\,^{\circ}C)$:Benzene: $75\, mm\, Hg$Toluene: $22\, mm\, Hg$