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    Roddilla Posts: 145, Reputation: 3
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    Oct 10, 2012, 08:51 AM
    Chemical equilibria and thermodynamics
    The enzyme aldolase catalyzes the conversion of fructose‐1,6‐
    bisphosphate to dihydroxyacetone phosphate and glyceraldehyde‐3‐
    phosphate. ΔG°’ for the reaction is +23.8 kJmol‐1, whereas ΔG in the cell
    is ‐1.3 kJmol‐1. Calculate the ratio of products to reactants under
    equilibrium and intracellular conditions. (7×10‐5; 3.7×10‐5)

    I have this problem which I worked out and got the answer correct but on using the equation ΔG = ΔG° + RT ln Qp in order to find the ratio I found a problem. IF Q is the ratio of products and reactants at equilibrium then why is it that ΔG is not zero because we know that ΔG should be zero at equilibrium?

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