Nov '08
16
MCAT Question of the Day | MCAT Course


  • Q:

    Which of the following has a negative standard free energy change at 25 °C?

    I. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
    II. 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
    III. 2H2O(l) → 2H2(g) + O2(g)


     

    A

    I only

    B

    II only

    C

    I and II only

    D

    II and III only




    Tags: Thermochemistry | Suggest a tag
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