Reaction quotient vs. equilibrium constant
For a reaction at constant temperature, the reaction quotient Q is smaller than K. What will happen?
Answer B: explanation for every choice
A
A reverse shift happens when Q is greater than K.
B
Correct. With Q below K, the ratio of products to reactants is too low, so the reaction shifts forward.
C
Equilibrium requires Q = K.
D
K is constant at a given temperature. Q changes to reach K.
TakeawayQ below K → forward. Q above K → reverse.
Equation usedEquilibrium constant and reaction quotient
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