Recall that when a reaction is at equilibrium, the forward and reverse reactions

Question

Recall that when a reaction is at equilibrium, the forward and reverse reactions occur at the same rate. To illustrate this idea, consider the reaction of A and B to form AB. A + B AB Click the "React" button below to see what happens. Notice that the reaction never stops. Even after several minutes, there is A and B left unreacted, and the forward and reverse reactions continue to occur. Also note that amounts of each species (i.e.. their concentrations) stay the same. What is the value of the equilibrium constant for this reaction? Assume each atom or molecule represents a 1 M concentration of that substance.

Explanation / Answer

K = conc. of AB / ( conc. of A * conc of B) as all are one, therefore K=1

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