If two volatile liquids A and B forms a minimum boiling azeotrope at XA - 0-5- For P0A - 400 torr and P0B - 500 torr then choose the correct option-Here- P0 is the vapour pressure of the azeotropic mixture -

Here X_A=0.5 X_B=1 0.5=0.5 According to raoult's law : P_T=p^∘_Aχ_A+p^∘_Bχ_B P_T=(400× 0.5)+(500×0.5) P_T=450 torr Since it is a minimum boiling azeotrope, it ...

You visited us 2 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 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 .

P^{0} < 400 t o r r

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

P^{0} = 400 t o r r

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

400 t o r r < P^{0} < 450 t o r r

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

P^{0} > 450 t o r r

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

Open in App

Solution

The correct option is D $P^{0} > 450 t o r r$
Here
$X_{A} = 0.5 X_{B} = 1 - 0.5 = 0.5$
According to raoult's law :

$P_{T} = p_{A}^{\circ} χ_{A} + p_{B}^{\circ} χ_{B} P_{T} = (400 \times 0.5) + (500 \times 0.5) P_{T} = 450 t o r r$
Since it is a minimum boiling azeotrope, it shows positive deviation at azeotropic concentration.
The vapour pressure of the mixture will be more than as calculated from Raoult's law.
Option (d) is correct

Suggest Corrections

Similar questions

Q. 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 :

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

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. If two liquids A and B form minimum boiling azeotrope at some specific composition then :

Join BYJU'S Learning Program

Explore more

Azeotropic Mixtures

Standard XII Chemistry

Join BYJU'S Learning Program

If two volatile liquids A and B forms a minimum boiling azeotrope at XA=0.5. For P0A=400 torr and P0B=500 torr then choose the correct option: Here, P0 is the vapour pressure of the azeotropic mixture .

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 .