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Ionic product of water changes

  1. Jul 1, 2016 #1

    TT0

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    1. The problem statement, all variables and given/known data

    Under which set of conditions is the ionic product of water, Kw, constant at a given temperature in aqueous systems?

    1. in dilute acidic but not dilute alkaline solutions.

    2. in dilute alkaline but not dilute acidic solutions.

    3. in both dilute acidic and alkaline solutions.

    4. only at the equivalence point of a strong acid-strong alkali titration.

    5. only in pure water.
    2. Relevant equations


    3. The attempt at a solution

    I don't understand what this question is asking. Is it asking in which scenario is the Kw constant for all temperatures or does it never change? Both of these I don't understand, could someone explain this to me?

    Cheers!
     
  2. jcsd
  3. Jul 1, 2016 #2

    Borek

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    Staff: Mentor

    Technically there is no correct answer between those given. Kw is constant always.
     
  4. Jul 1, 2016 #3

    TT0

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    I see, so its just a bad question then?

    Thanks
     
  5. Jul 1, 2016 #4

    Borek

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    Staff: Mentor

    That's my opinion.
     
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