If two volatile liquids A and B form a maximum boiling azeotrope at XA - 0-3- For- P-A - 200 torr and P-B - 400 torr -the vapour pressure of the azeotropic mixture can exhibit a value of -

Here X_A=0.3 X_B=1 0.3=0.7 According to raoult's law : P_T=p^∘_Aχ_A+p^∘_Bχ_B P_T=(200× 0.3)+(400×0.7) P_T=340 torr Since it is a maximum boiling azeotrope,it ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Azeotropic Mixtures

If two volati...

Question

If two volatile liquids A and B form a maximum boiling azeotrope at $X_{A} = 0.3$ .
For, $P_{A}^{\circ} = 200 t o r r and P_{B}^{\circ} = 400 t o r r$ ,the vapour pressure of the azeotropic mixture can exhibit a value of :

350 t o r r

No worries! We‘ve got your back. Try BYJU‘S free classes today!

330 t o r r

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

360 t o r r

No worries! We‘ve got your back. Try BYJU‘S free classes today!

380 t o r r

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $330 t o r r$
Here
$X_{A} = 0.3 X_{B} = 1 - 0.3 = 0.7$
According to raoult's law :

$P_{T} = p_{A}^{\circ} χ_{A} + p_{B}^{\circ} χ_{B} P_{T} = (200 \times 0.3) + (400 \times 0.7) P_{T} = 340 t o r r$
Since it is a maximum boiling azeotrope,it shows negative deviation at azeotropic concentration.
The vapour pressure of the mixture will be less than as calculated from Raoult's law.
Option (b) is correct

Suggest Corrections

Similar questions

Q. If two volatile liquids A and B forms a minimum boiling azeotrope at

X_{A} = 0.5

.
For

P_{A}^{0} = 400 t o r r and P_{B}^{0} = 500 t o r r

then choose the correct option:
Here,

P^{0}

is the vapour pressure of the azeotropic mixture .

Q. Volatile liquids A and B forming an azeotrope (at a particular temperature range) have vapour pressures of

180 m m

and

100 m m

respectively. If the mole fraction of A in the solution mixture is 0.5, and the mixture has a total vapour pressure of

200 m m

.

Choose the correct option(s) for the azeotropic mixture.

Q. Volatile liquids A and B forming an azeotrope (at a particular temperature range) have vapour pressures of

280 m m

and

200 m m

respectively. If the mole fraction of A in the solution mixture is 0.3, and the mixture has a total vapour pressure of

300 m m

.

Choose the correct statement(s) for the following mixture.

Q. Two volatile liquids A and B form a maximum boiling azeotrope when mixed in a given ratio.
Which of the following statement is correct?

Q. Which of the following is/are correct graph(s) for a binary mixture of two volatile liquids which form a minimum boiling azeotrope?

Join BYJU'S Learning Program

Explore more

Azeotropic Mixtures

Standard XII Chemistry

Join BYJU'S Learning Program

If two volatile liquids A and B form a maximum boiling azeotrope at XA=0.3. For, P∘A=200 torr and P∘B=400 torr ,the vapour pressure of the azeotropic mixture can exhibit a value of :

If two volatile liquids A and B form a maximum boiling azeotrope at $X_{A} = 0.3$ .
For, $P_{A}^{\circ} = 200 t o r r and P_{B}^{\circ} = 400 t o r r$ ,the vapour pressure of the azeotropic mixture can exhibit a value of :