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Chemistry: Gas Solubility and Vapour Pressure

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Chemistry: Gas Solubility and Vapour Pressure

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Questions and Answers

What is the main reason for the deviation from Raoult's law?

Strength of A-B interactions

Weakness of A-A and B-B interactions

Hydrogen bonding between solute and solvent molecules

Nature of interactions at the molecular level (correct)

In a solution that shows positive deviation from Raoult's law, what is the relative strength of A-B interactions?

Stronger than A-A and B-B interactions

Weaker than A-A and B-B interactions (correct)

Independent of A-A and B-B interactions

Equal to A-A and B-B interactions

What is the result of weaker A-B interactions in a solution?

Increased vapour pressure (correct)

Decreased vapour pressure

Unpredictable effect on vapour pressure

No effect on vapour pressure

Which of the following solutions is expected to show positive deviation from Raoult's law?

Ethanol and acetone Signup and view all the answers

What is the effect of adding acetone to pure ethanol?

Weakening of hydrogen bonds Signup and view all the answers

Why does the solution of ethanol and acetone show positive deviation from Raoult's law?

Due to weakening of hydrogen bonds Signup and view all the answers

What type of interactions are weaker in a solution that shows positive deviation from Raoult's law?

A-B interactions Signup and view all the answers

What is the effect of weaker A-B interactions on the molecules of A (or B) in a solution?

They find it easier to escape Signup and view all the answers

Which of the following solutions is expected to show positive deviation from Raoult's law?

Carbon disulphide and acetone Signup and view all the answers

What is the result of positive deviation from Raoult's law?

Increased vapour pressure Signup and view all the answers

Chemistry: Gas Solubility and Vapour Pressure

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Podcast

Questions and Answers

What is the main reason for the deviation from Raoult's law?

In a solution that shows positive deviation from Raoult's law, what is the relative strength of A-B interactions?

What is the result of weaker A-B interactions in a solution?

Which of the following solutions is expected to show positive deviation from Raoult's law?

What is the effect of adding acetone to pure ethanol?

Why does the solution of ethanol and acetone show positive deviation from Raoult's law?

What type of interactions are weaker in a solution that shows positive deviation from Raoult's law?

What is the effect of weaker A-B interactions on the molecules of A (or B) in a solution?

Which of the following solutions is expected to show positive deviation from Raoult's law?

What is the result of positive deviation from Raoult's law?

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