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Consider a binary mixture of ethanol and water that exhibits negative deviation from Raoult's Law. What can be said about the boiling point of the mixture?

 

Option: 1

The boiling point is lower than the boiling point predicted by Raoult's Law.

 


Option: 2

The boiling point is higher than the boiling point predicted by Raoult's Law.


Option: 3

The boiling point is equal to the boiling point predicted by Raoult's Law.

 


Option: 4

It is impossible to predict the boiling point of the mixture.


Answers (1)

best_answer

A binary mixture that exhibits negative deviation from Raoult's Law has stronger intermolecular forces between its components compared to the forces between the components and the solvent. This leads to a higher boiling point of the mixture compared to the boiling point predicted by Raoult's Law, as more energy is required to break the intermolecular bonds and vaporise the components.

 

Posted by

Ritika Harsh

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