Solution

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

What is the term used to describe the difference in the boiling point of a solution and the boiling point of the pure solvent?

  • Depression of boiling point
  • Freezing point elevation
  • Elevation of boiling point (correct)
  • Osmotic pressure elevation

What is the process of studying the elevation in boiling point of a liquid in which a non-volatile solute is dissolved?

  • Thermometry
  • Osmometry
  • Ebullioscopy (correct)
  • Cryoscopy

What is the pressure at which a liquid boils at its normal boiling point?

  • 760 mm (correct)
  • 820 mm
  • 800 mm
  • 720 mm

What is the term used to describe a solution that has more osmotic pressure than another solution?

<p>Hypertonic solution (D)</p> Signup and view all the answers

What is the effect of adding a non-volatile solute to a pure solvent on its vapour pressure?

<p>It decreases the vapour pressure (A)</p> Signup and view all the answers

What is the difference in the freezing point of a pure solvent and a solution called?

<p>Depression of freezing point (B)</p> Signup and view all the answers

What is the relationship between depression in freezing point and the lowering of vapour pressure?

<p>Depression in freezing point is directly proportional to the lowering of vapour pressure (C)</p> Signup and view all the answers

What is the unit of molal depression constant (Kf)?

<p>K kg/mol (A)</p> Signup and view all the answers

What is the expression for the depression in freezing point of a solution?

<p>ΔTf = Kf × m (C)</p> Signup and view all the answers

What is the relationship between the elevation in boiling point and the lowering of vapour pressure?

<p>Elevation in boiling point is directly proportional to the lowering of vapour pressure (A)</p> Signup and view all the answers

What is the term given to the study of the depression in freezing point of a solution?

<p>Cryoscopy (D)</p> Signup and view all the answers

What is the expression for the molality of a solution in terms of the depression in freezing point?

<p>m = 1000 × Kf × w / ΔTf × W (D)</p> Signup and view all the answers

What is the value of Kb for water in degree Celsius per kilogram per mole?

<p>0.52 (D)</p> Signup and view all the answers

What is the relationship between the freezing point of a solution and that of the pure solvent?

<p>The freezing point of a solution is always lower than that of the pure solvent. (A)</p> Signup and view all the answers

What is the effect of dissociation of a solute on the molality of the solution?

<p>The molality of the solution increases. (D)</p> Signup and view all the answers

What is the relationship between the osmotic pressure of a solution and the flow of solvent?

<p>The flow of solvent is always from lower osmotic pressure to higher osmotic pressure. (A)</p> Signup and view all the answers

What is the effect of association of a solute on the boiling point of a solution?

<p>The boiling point of the solution decreases. (C)</p> Signup and view all the answers

What is the relationship between the molecular weight of a solute and its boiling point elevation?

<p>The boiling point elevation is inversely proportional to the molecular weight of the solute. (C)</p> Signup and view all the answers

What is the advantage of using mole fraction over molarity?

<p>Mole fraction is independent of temperature (D)</p> Signup and view all the answers

Why is mass fraction preferred over molarity?

<p>Mass fraction involves the weights of the solute and solvent (D)</p> Signup and view all the answers

What is the effect of temperature on the volume of a solution?

<p>It has a significant effect on the volume of the solution (C)</p> Signup and view all the answers

What is the demal unit of concentration?

<p>One mole of solute per litre of solution at 0°C (A)</p> Signup and view all the answers

What is the formula for mass fraction of a component in a solution?

<p>Mass of component / Total mass of solution (C)</p> Signup and view all the answers

Why is molality preferred over molarity?

<p>Molality involves the weights of the solute and solvent (A)</p> Signup and view all the answers

What is the condition for two solutes to be isotonic?

<p>They have the same osmotic pressure (B)</p> Signup and view all the answers

What is the effect of dissociation of a solute on the boiling point elevation of a solution?

<p>It increases the boiling point elevation (A)</p> Signup and view all the answers

What is the unit of the molal elevation constant (Kb)?

<p>deg kg mol^-1 (A)</p> Signup and view all the answers

What is the relationship between the mass fraction of a solute and its boiling point elevation?

<p>The boiling point elevation is directly proportional to the mass fraction (D)</p> Signup and view all the answers

What is the effect of temperature on the osmotic pressure of a solution?

<p>The osmotic pressure increases with an increase in temperature (A)</p> Signup and view all the answers

What is the relationship between the mole fraction of a solute and its boiling point elevation?

<p>The boiling point elevation is directly proportional to the mole fraction (B)</p> Signup and view all the answers

What is the reason for the difference in boiling point of a solution and the pure solvent?

<p>The addition of a non-volatile solute lowers the vapour pressure of the solvent (D)</p> Signup and view all the answers

What is the effect of adding a non-volatile solute to a pure solvent on its boiling point?

<p>It increases the boiling point of the solvent (B)</p> Signup and view all the answers

What is the relationship between the vapour pressure of a solution and that of the pure solvent?

<p>The vapour pressure of the solution is lower than that of the pure solvent (B)</p> Signup and view all the answers

What is the term used to describe the difference in the boiling point of a solution and the boiling point of the pure solvent?

<p>Elevation in boiling point (A)</p> Signup and view all the answers

What is the method used to determine the elevation in boiling point?

<p>All of the above (D)</p> Signup and view all the answers

What is the effect of adding a non-volatile solute to a pure solvent on its freezing point?

<p>It decreases the freezing point of the solvent (C)</p> Signup and view all the answers

Flashcards are hidden until you start studying

Related Documents

Use Quizgecko on...
Browser
Browser