When does a reaction attain equilibrium :
Correct answer: A. When forward and backward reaction taking place at the same rate
- A. When forward and backward reaction taking place at the same rate
- B. Reaction takes place
- C. The forward and backward
- D. There are two reactions with one faster than the other
Explanation
At equilibrium, the rates of the forward and backward reactions are equal, and there is no net change in the concentrations of the reactants and products. This means that the system has reached a state of balance, where the concentrations of the reactants and products remain constant over time.
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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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