Question

Select all of the true statements regarding chemical equilibrium?

1) Chemical equilibrium is a dynamic process.
2) Chemical equilibrium can only be achieved in closed systems.
3) The rate of the forward reaction is equal to the rate of the reverse reaction at equilibrium.
4) The concentration of reactants and products remains constant at equilibrium.
5) Le Chatelier's principle can be used to predict the effect of changes on a system at equilibrium.

Answer 1

True statements about chemical equilibrium include it being a dynamic process, only occurring in closed systems, forward and reverse reactions having equal rates, reactants and products having constant concentrations, and Le Chatelier's principle applying for predicting system changes.

Step-by-step explanation:

The question involves selecting the true statements regarding chemical equilibrium. Here are the true statements:

Chemical equilibrium is a dynamic process.

Chemical equilibrium can only be achieved in closed systems.

The rate of the forward reaction is equal to the rate of the reverse reaction at equilibrium.

The concentration of reactants and products remains constant at equilibrium.

Le Chatelier's principle can be used to predict the effect of changes on a system at equilibrium.

At chemical equilibrium, the reactions do not stop; instead, the forward and reverse reactions occur at equal rates, which means there is no net change in the concentrations of reactants and products. The concentrations are constant, but they need not be equal. This state of balance can only be maintained in a closed system where no additional reactants or products can enter or leave.