101.Give one example each of miscible liquid pairs showing positive and negative deviatins from Raoult’s law. Give one reason for such deviations.
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102.Show that the relative lowering of vapour pressure of a solution containing a nonvolatile solute is equal to the mole fraction of the solute in the solution?
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103.Which type of deviation is shown by the solution formed by mixing cyclohexane and ethanol?
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104.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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105.
(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?
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106.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?
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107.Why should the solution of a nonvolatile solute freeze at a lower temperature? Draw a neat diagram to prove your point.
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