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Chemistry: Azeotrope Composition and Fractional Distillation

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Chemistry: Azeotrope Composition and Fractional Distillation

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Questions and Answers

What is the effect of the van't Hoff factor on the relative lowering of vapor pressure of a solvent?

It is dependent on the concentration of the solution.

It decreases the relative lowering of vapor pressure.

It increases the relative lowering of vapor pressure. (correct)

It does not affect the relative lowering of vapor pressure.

What is the value of the van't Hoff factor for a strong electrolyte at high dilution?

It approaches 3.

It approaches 1.

It approaches 2. (correct)

It depends on the type of electrolyte.

What is the relationship between the van't Hoff factor and the degree of dissociation of a solute?

The van't Hoff factor is inversely proportional to the degree of dissociation.

The van't Hoff factor decreases with an increase in the degree of dissociation.

The van't Hoff factor is independent of the degree of dissociation.

The van't Hoff factor increases with an increase in the degree of dissociation. (correct)

What is the effect of the van't Hoff factor on the elevation of boiling point of a solution?

It increases the elevation of boiling point. Signup and view all the answers

What is the relationship between the osmotic pressure of a solution and the van't Hoff factor?

The osmotic pressure is directly proportional to the van't Hoff factor. Signup and view all the answers

What is the value of the van't Hoff factor for K2SO4 at high dilution?

It approaches 3. Signup and view all the answers

What is the effect of the van't Hoff factor on the depression of freezing point of a solution?

It increases the depression of freezing point. Signup and view all the answers

What is the relationship between the van't Hoff factor and the molal depression constant of a solvent?

The van't Hoff factor is directly proportional to the molal depression constant. Signup and view all the answers

What is the percentage association of benzoic acid in a solution if it forms a dimer?

60% Signup and view all the answers

What is the relationship between the van't Hoff factor and the concentration of a solution?

The van't Hoff factor decreases with an increase in concentration. Signup and view all the answers