Question

Which statement describes a reaction at equilibrium?

1. The mass of the products must equal the mass of the reactants
2. The entropy of the reactants must equal the entropy of the products
3. The rate of formation of the products must equal the rate of formation of the reactants.
4. The number of moles of the reactants must equal the number of moles of the products.

Answer 1

Answer:

3. The rate of formation of the products must equal the rate of formation of the reactants.

Explanation:

Answer 2

The reaction at the equilibrium represents the rate of formation of the products that is equivalent to the rate of formation of the reactants.

What is the reaction?

It is arise at the equilibrium at the time when the amounts of reactants or products should be same. The Chemical equilibrium refers to the dynamic process that represent the rate of formation of products via the forward reaction i.e. equivalent to the rate where the products should be reform reactions via the reverse reaction.

hence, the option 3 is correct.

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