Barrons SAT Subject Test Chemistry, 13th Edition

(Marvins-Underground-K-12) #1

  1. (C) The most important considerations for a spontaneous reaction are (1) that
    the reaction is exothermic with a negative ΔH, so that once started it tends to
    continue on its own because of the energy released, and (2) that the reaction
    tends to go to the highest state of randomness, shown by a positive value for
    ΔS.

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