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  • The graph of vapour pressure and temperature for three different liquids X, Y, and Z is shown below: <img alt="" src="https://cdn.entrance360.com/media/uploads/2020/01/16/pihiugi_clipped_

The graph of vapour pressure and temperature for three different liquids X, Y, and Z is shown below:

The following inferences are made:

(A) X has higher intermolecular interactions compared to Y.

(B) X has lower intermolecular interactions compared to Y

(C) Z has lower intermolecular interactions compared to Y

The correct inference(s) is /are :

 

Option: 1

(C)


Option: 2

(A)


Option: 3

(B)


Option: 4

(A) and (C)


Answers (1)

best_answer

Vaporizing starting means boiling started.

Given in the graph, at zero vapour pressure the boiling starting point.

So, the Order of B.P. is Z > Y > X

If the boiling point is low it will easily vaporize due to weak intermolecular force of attraction.

Order of Intermolecular Interaction : Z > Y > X.

the intermolecular force of attraction increases, the boiling point increases then vapour pressure decreases.

So, X has lower intermolecular interactions compared to Y and Z

Therefore, Option(3) is correct.

Posted by

HARSH KANKARIA

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