Which phrase defines chemical equilibrium?
When the concentrations of reactants and products in a chemical reaction are no longer changing over time.
Chemical equilibrium is a state in a chemical reaction where the forward and backward reaction rates are equal, meaning that the concentrations of reactants and products remain constant over time.
Chemical equilibrium refers to the state of a chemical reaction in which the forward and reverse reactions occur at the same rate, resulting in no net change in the concentrations of reactants and products over time. In other words, the system is in balance, with the forward and reverse reactions happening simultaneously and at equal rates.
To understand this concept, it helps to grasp the idea of reaction rates and reversible reactions. Reversible reactions are those in which the products can react together to form the original reactants. When a reversible reaction occurs in a closed system, it eventually reaches a point where the concentrations of the reactants and products stabilize, and no further changes occur. This steady state is known as chemical equilibrium.
Chemical equilibrium can be defined by the following phrase: "A state in which the forward and reverse reactions of a reversible chemical reaction proceed at the same rate, resulting in a constant concentration of reactants and products over time."