When a Reversible Chemical Reaction Is at Equilibrium

question 15

Multiple Choice

When a reversible chemical reaction is at equilibrium,

• A)the rate of the reaction in one direction is equal to the rate in the reverse direction.
• B)the concentration of the reactants is equal to the concentration of the products.
• C)both the forward and reverse reactions stop occurring.
• D)the supply of reactants has become exhausted,so the forward reaction ceases and the rate of the reverse reaction increases.
• E)catalysts no longer influence either the forward or reverse reaction rates.

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Definitions:

Tax

A compulsory financial charge or some other type of levy imposed upon a taxpayer by a governmental organization in order to fund government spending and various public expenditures.

Marginal Benefit

The extra utility or satisfaction gained from the utilization or creation of one more unit of a product or service.

Marginal Cost

The increase in total cost that arises from producing one additional unit of a product or service, reflecting changes in variable costs.

Quintiles

A statistical value that divides a data set into five equal parts, often used in economic and social research to assess income distribution or other measurements.