Jan '14
27
MCAT Question of the Day | MCAT Course


  • Q:

    Two biochemical mechanisms use the same reactants to produce the same products. The simplified, balanced reaction for both mechanisms is 2A + B → 2C. If one biochemical mechanism performs the reaction in 2 steps but the other mechanism performs it in 4 steps, how does the net enthalpy change of the reaction differ between the two biochemical mechanisms?

     

    A

    The enthalpy change for 4 steps is double the enthalpy change for 2 steps

    B

    The enthalpy change for 4 steps is 4 times more than the enthalpy change for 2 steps

    C

    The enthalpy change for 4 steps is half the enthalpy change for 2 steps

    D

    The enthalpy change for 4 steps is the same as the enthalpy change for 2 steps




    Tags: Thermochemistry | Suggest a tag
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