Question

When dynamic equilibrium is achieved, the rate of the forward and backward reactions go to zero. (T&F)

A chemical equilibrium exists when

Select one:

a. the rate at which reactants form products is the same as the rate at which products form reactants.

b. the rate at which reactants form products becomes zero.

c. the sum of reactant and product concentrations equals one mole.

d. there are equal amounts of reactants and products.

e. reactants are completely changed to products.

Answer 1

Dynamic equilibrium means that the rates of the forward and reverse reactions are equal, not that both rates go to zero. The correct answer is (a) which states that equilibrium is when the formation rates of products and reactants are the same.

Step-by-step explanation:

The statement that 'When dynamic equilibrium is achieved, the rate of the forward and backward reactions go to zero' is false. Instead, a chemical equilibrium exists when the rate at which reactants form products is the same as the rate at which products form reactants. This means that the correct answer is (a). Dynamic equilibrium does not imply that the reactions have stopped; rather, it indicates that the reactions are continuously occurring at equal rates. Therefore, both the forward and reverse reactions continue, and the concentrations of the reactants and products remain constant.

It is crucial to understand that at equilibrium, while the concentrations of reactants and products don't change, this does not necessarily mean that their quantities are equal. What defines equilibrium is the rates of the forward and reverse reactions being equal, leading to a stable ratio of reactants and products.

Answer 2

1) False

2) there are equal amounts of rectants and products

Step-by-step explanation:

1) When dynamic equilibrium is achieved. the rate of forward and backward reaction they are the same, that is to say, two opposite reactions occur at the same rate, keeping the concentrations constant over time. Different to say the rate of the ractions go to zero.

2) A chemical equilibium exists when what is produce in quantities is equal to what reacts.

So the correct answer is the literal (d).