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vera_ewing

  • one year ago

1 of 15 What must be true for a substance to dissolve in water? A. The entropy term must be positive. B. The enthalpy and entropy terms must combine for a favored reaction. C. The free energy change of dissolving must be positive. D. The energy required to break bonds apart must be greater than the energy released from the substance reacting with the solvent.

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  1. vera_ewing
    • one year ago
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    @Hoslos @sweetburger @rvc

  2. sweetburger
    • one year ago
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    I think either A. or B. As a would be always true as dissolving and solid will always increase the entropy. I am thinking it may be B because for all kinds of reaction if the DeltaH and DeltaS combine to be favorable negative Delta G/Free energy then the substance will dissolve.

  3. sweetburger
    • one year ago
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    As A would be always true as dissolving any solid will always increase entropy*

  4. sweetburger
    • one year ago
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    Just rewriting that sentence.

  5. vera_ewing
    • one year ago
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    Yep it was B.

  6. sweetburger
    • one year ago
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    Ya i was thinking it was B.

  7. rvc
    • one year ago
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    thanks @sweetburger

  8. sweetburger
    • one year ago
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    Np np :)

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