Why should the solution of a nonvolatile solute freeze at a lower temperature? Draw a neat diagram to prove your point.

Since the vapour pressure of a solution is lower than that of pure solvent, the temperature of freezing point of the solution is lower than that of pure solvent.
T⁰_fis the freezing point of pure liquid solvent. T_f is the freezing point of solution.

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(a) Draw a labelled diagram to show the change in vapour pressure of a solvent, when a non-volatile solute is added to it.
(b) Show that the change in boiling point of the solvent in this diagram?

Illustrate elevation in boiling point with the help of vapour pressure temperature curve of a solution. Show that elevation in boiling point is a colligative property?

Which type of deviation is shown by the solution formed by mixing cyclohexane and ethanol?

Why should a solution of a non-volatile solute boil at a higher temperature ? Draw the diagram to prove your point?

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Why should the solution of a nonvolatile solute freeze at a lower temperature? Draw a neat diagram to prove your point.