Which one of the following will NOT change upon adding an enzyme to a chemical reaction or changing the concentration of reactants or products? A.…
Which one of the following will NOT change upon adding an enzyme to a chemical reaction or changing the concentration of reactants or products?A. ΔG°B. K_eqC. ΔG
Select an option to attempt
Correct Answer: Option A
Explanation
Thermodynamic constants:,, and the effect of catalysts:Distinctions:•(standard free energy change): Fixed for a given reaction under standard conditions. Depends ONLY on the reaction, NOT on enzyme or reactant concentrations.•(equilibrium constant): Related toby:Ifis constant,is also constant. Enzymes do NOT change.•(actual free energy change): Depends on actual concentrations:where Q is the reaction quotient. This changes with reactant/product concentrations.Therefore:•andare thermodynamic constants, unchanged by enzyme presence or reactant concentrations.•changes with concentrations and departs from.