A reaction is in equilibrium when _________
A reaction is in equilibrium when _________
- A) the rate of the forward reaction is equal to the rate of the reverse reaction
- B) the reaction rates of the forward and backward reaction are zero
- C) its rate is reversible
- D) it does not produce ant product again
Correct Answer: A) the rate of the forward reaction is equal to the rate of the reverse reaction
Explanation
This Chemistry question is about chemical equilibrium. The question is asking when a reaction is in equilibrium. There are four options provided as answers, and we are to choose the correct one.
Chemical equilibrium is a state in which the concentrations of reactants and products remain constant with time. In other words, the rate of the forward reaction is equal to the rate of the reverse reaction. Therefore, Option A is the correct answer.
Option B is incorrect because if the reaction rates of the forward and backward reaction are zero, then the reaction has stopped and is not in equilibrium. Option C is also incorrect because reversible reactions can be in equilibrium or not depending on the rates of the forward and backward reactions. Option D is incorrect because a reaction that does not produce any product again is a reaction that has stopped.
In summary, the correct answer to this question is Option A, which says that a reaction is in equilibrium when the rate of the forward reaction is equal to the rate of the reverse reaction.