The equilibrium constant is always written as a ratio of:
Correct answer: B. Products over reactants
- A. Reactants over products
- B. Products over reactants
- C. Product times Reactants
- D. None of these
Explanation
At 'equilibrium', the rate of the forward and reverse reactions are equal. The equilibrium constant gives the ratio of the units (pressure or concentration) of the products to the reactants when the reaction is at equilibrium.
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About Reversible Reactions
A reversible reaction proceeds in both forward and backward directions, so reactants and products continue changing until dynamic equilibrium is established. The topic covers the meaning of equilibrium, the equality of forward and reverse rates, and how concentration, pressure and temperature disturb equilibrium, which is separate from the rate at which equilibrium is reached.
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