Which of the following statements about the c | vedclass

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

Question

(C) According to Raoult's Law,the partial pressure of a component in the vapour phase is given by $P_i = P^o_i X_i$. Since the mixture is $1:1$ molar,

Vedclass · Accepted Answer

The vapour will contain a higher percentage of benzene.

Vedclass · Answer

(C) According to Raoult's Law,the partial pressure of a component in the vapour phase is given by $P_i = P^o_i X_i$. Since the mixture is $1:1$ molar,the mole fractions in the liquid phase are equal $(X_{	ext{benzene}} = X_{	ext{toluene}} = 0.5)$. The total pressure $P = P^o_{	ext{benzene}} X_{	ext{benzene}} + P^o_{	ext{toluene}} X_{	ext{toluene}}$. The mole fraction in the vapour phase is $Y_i = \frac{P_i}{P} = \frac{P^o_i X_i}{P}$. Since $X_{	ext{benzene}} = X_{	ext{toluene}}$,the component with the higher pure vapour pressure $(P^o)$ will have a higher mole fraction in the vapour phase. Given $P^o_{	ext{benzene}} = 12.8\ kPa$ and $P^o_{	ext{toluene}} = 3.85\ kPa$,benzene is more volatile. Therefore,the vapour will contain a higher percentage of benzene.

Which of the following statements about the composition of the vapour over an ideal $1:1$ molar mixture of benzene and toluene is correct? Assume that the temperature is constant at $25\ ^oC$. (Given,vapour pressure data at $25\ ^oC$,benzene $= 12.8\ kPa,$ toluene $= 3.85\ kPa$)

Similar Questions

Which of the following is appropriate for the solution made by mixing acetone and carbon disulphide?

Which of the following solutions behaves nearly as an ideal solution?

Which of the following will form an ideal solution?

Which of the following is not correct?

Identify the mixture that shows positive deviations from Raoult's Law.

Vedclass Test Series

Exam Paper Generator

Online Exam Module