Solutions to some of the problems of this chapter require vapor pressures as a function of temperature. Table B

$.$

$2$

$,$

$$Appendix B

$,$

$$lists

parameter values for the Antoine equation, from which these can be computed.

$1$

$3$

$.$

$1$

$.$

$$Assuming the validity of Raoult's law, do the following calculations for the benzene

$($

$1$

$)$

$/$

toluene

$($

$2$

$)$

$$system:

$($

a

$)$

$$Given

$$

$1$

$=$

$0$

$.$

$3$

$3$

$$and

$$

$=$

$1$

$0$

$0$

$\backslash$deg

$$

$,$

$$find

$$

$1$

$$and

$$

$.$

$($

b

$)$

$$Given

$$

$1$

$=$

$0$

$.$

$3$

$3$

$$and

$$

$=$

$1$

$0$

$0$

$\backslash$deg

$$

$,$

$$find

$$

$1$

$$and

$$

$.$

$($

c

$)$

$$Given

$$

$1$

$=$

$0$

$.$

$3$

$3$

$$and

$$

$=$

$1$

$2$

$0$

kPa, find

$$

$1$

$$and

$$

$.$

$($

d

$)$

$$Given

$$

$1$

$=$

$0$

$.$

$3$

$3$

$$and

$$

$=$

$1$

$2$

$0$

kPa, find

$$

$1$

$$and

$$

$.$

$($

e

$)$

$$Given

$$

$=$

$1$

$0$

$5$

$\backslash$deg

$$

$$and

$$

$=$

$1$

$2$

$0$

kPa, find

$$

$1$

$$and

$$

$1$

$.$

$($

$$

$)$

$$For part

$($

e

$)$

$,$

$$if the overall mole fraction of benzene is

$$

$1$

$=$

$0$

$.$

$3$

$3$

$,$

$$what molar fraction of the two

$-$

phase system is vapor?

$($

g

$)$

$$Why is Raoult's law likely to be an excellent VLE model for this system at the stated

$($

or computed

$)$

$$conditions$?$