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15 February, 09:11

For the reaction A+B↽--⇀C+D, assume that the standard change in free energy has a positive value. Changing the conditions of the reaction can alter the value of the change in free energy (ΔG). Classify the conditions as to whether each would decrease the value of ΔG, increase the value of ΔG, or not change the value of ΔG for the reaction. For each change, assume that the other variables are kept constant.

A. Adding a catalystb.

B. Increasing [C] and [D]

C. Coupling with ATP hydrolysis

D. Increasing [A] and [B]

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  1. 15 February, 09:14
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    a. Adding a catalyst

    no effect. (Catalyst can only change the activation energy but not the free energy).

    b. increasing [C] and [D]

    Increase the free energy.

    c. Coupling with ATP hydrolysis

    decrease the free energy value.

    d. Increasing [A] and [B]

    decrease the free energy.
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