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Posted by on Wednesday, November 9, 2011 at 3:15am.

Classify the possible combinations of signs for a reaction's ∆H and ∆S values by the resulting spontaneity.

A) Spontaneous as written at all temperatures.
B) Spontaneous in reverse at all temperatures.
C) Spontaneous as written above a certain temperature.
D) Spontaneous as written, below a certain temperature.

1) ∆H = + // ∆S = +
2) ∆H = - // ∆S = +
3) ∆H = - // ∆S = -
4) ∆H = + // ∆S = -



I'm beyond confused. Please help!

  • Chemistry - , Wednesday, November 9, 2011 at 1:53pm

    See this link. It answers each.
    http://en.wikipedia.org/wiki/Spontaneous_process

  • Chemistry - , Tuesday, January 21, 2014 at 10:24pm

    1)c
    2)d
    3)b
    4)a

  • Chemistry - , Monday, March 31, 2014 at 11:09pm

    1 c
    2 a
    3 d
    4 b

  • Chemistry - , Thursday, December 4, 2014 at 5:04pm

    Paige is correct

  • Chemistry - , Monday, April 6, 2015 at 10:48pm

    Thanks page

  • Chemistry - , Sunday, April 26, 2015 at 12:07pm

    Thanks Paige.

  • Chemistry - , Friday, June 26, 2015 at 10:01pm

    Thanks Paige! :D

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