MGIMS WARDHA MGIMS WARDHA Solved Paper-2003

  • question_answer
    The solution obtained by adding water to alcohol, shows:

    A)  +ve deviation from Raoult's law

    B)  ideal behavior

    C)  -ve deviation from Raoult's law

    D)  application of Henry's law

    Correct Answer: A

    Solution :

                     For the solution of alcohol and water, A...B attractions, are lesser than B ... B and A ... A attractions, hence the vapour pressure of solution is greater than expected. i.e., this solution shows positive deviation from Raoult's law\[(\Delta {{V}_{m}}=+ve,\Delta {{H}_{m}}=+ve)\]


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