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Non-ideal solution and vapour pressure

  1. Mar 15, 2015 #1
    When there is a positive or negative deviation it is due to the interactions between A-A and B-B being weaker or stronger than the interactions between A-B. However, are there any scenarios where the interactions between A-A are stronger than A-B while B-B weaker than A-A or vice versa?

    In such a case would it be possible that the overall total vapour pressure of the solution to look like an ideal solution but the individual vapour pressure of A and B having positive and negative deviations?
  2. jcsd
  3. Mar 18, 2015 #2


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    Yes, and yes.
  4. Mar 18, 2015 #3
    Interesting idea, hadn't thought of this question before.
  5. Mar 28, 2015 #4
    Hmm in such a case what would the solution be classified as? Because it shouldn't be an ideal solution still right?
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