Raoult's Law Quiz

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Questions and Answers

What does Raoult's law state about the boiling point of a solution compared to the boiling point of the pure solvent?

  • The boiling point of the solution is equal to the boiling point of the pure solvent
  • The boiling point of the solution becomes infinity
  • The boiling point of the solution is lower than the boiling point of the pure solvent (correct)
  • The boiling point of the solution is higher than the boiling point of the pure solvent

In a solution according to Raoult's law, what happens to the freezing point compared to the freezing point of the pure solvent?

  • The freezing point of the solution becomes zero
  • The freezing point of the solution is higher than the freezing point of the pure solvent
  • The freezing point of the solution is equal to the freezing point of the pure solvent
  • The freezing point of the solution is lower than the freezing point of the pure solvent (correct)

According to Raoult's law, how does the vapor pressure of a solvent change when a non-volatile solute is added?

  • The vapor pressure of the solvent remains unchanged
  • The vapor pressure of the solvent becomes zero
  • The vapor pressure of the solvent decreases (correct)
  • The vapor pressure of the solvent increases

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