Which of the following statements describe a reaction that is at equilibrium?
Question: Which of the following statements describe a reaction that is at equilibrium?
A) The rate of the forward reaction is equal to the rate of the reverse reaction.
B) The concentration of the reactants is equal to the concentration of the products.
C) The reaction has stopped and no more changes occur.
D) The reaction releases or absorbs heat until the temperature is constant.
The correct answer is A. A reaction that is at equilibrium has reached a state where the forward and reverse reactions occur at the same rate, so there is no net change in the amounts of reactants and products. This does not mean that the reactants and products have the same concentration, or that the reaction has stopped, or that the temperature is constant. These are all common misconceptions that you should avoid when studying chemical equilibrium. Equilibrium is a dynamic process that depends on various factors, such as temperature, pressure, and concentration. You can use the equilibrium constant, K, to quantify how far a reaction proceeds before reaching equilibrium.
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