The rate (velocity) of a reaction is- Select one: a. The free energy difference

Question

The rate (velocity) of a reaction is-
Select one:
a. The free energy difference between products and reactants
b. The time it takes the reacting system to reach equilibrium
c. The difference in product concentration divided by time
d. The difference between the rate constants of the forward and the reverse reactions
e. All of the above


The reaction A + B ? C + D is an example of-
Select one:
a. Zero order reaction
b. First-order reaction
c. Second-order reaction
d. Fourth-order reaction

For a reaction A + B ? C + D, the forward rate constant is K1 and the reverse rate constant is K-1. The rate (velocity) of the forward reaction is:
Select one:
a. (K1)/(K-1)
b. (K1)/[A][B]
c. [C][D]/[A][B]
d. (K1)(K-1)[A][B]
e. (K1)[A][B]

The rate constant of the reaction:
Select one:
a. Depends on the concentration of reactants
b. Describes the rate of the reaction when it reaches equilibrium
c. Is a thermodynamic constant that is always true for a given reaction
d. Will be different for an enzyme-catalyzed versus un-catalyzed reaction
e. Both C and D are correct

Explanation / Answer

a. The free energy difference between products and reactants

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