You study the rate of a reaction, measuring both the concentration of the reactant and the concentration of the product as a function of time, and obtain the following results:

Which chemical equation is consistent with these data: (i) A → B, (ii) B → A, (iii) A → 2 B, (iv) B → 2 A?

검증된 단계별 안내

Examine the graph and note that the concentration of reactant C decreases over time while the concentration of product D increases over time.

Identify that the reaction is proceeding in the forward direction, converting reactant C into product D.

Consider the stoichiometry of the reaction. Since the concentration of C decreases and D increases, the reaction must involve a single reactant converting into a single product or multiple products.

Compare the given chemical equations: (i) A → B, (ii) B → A, (iii) A → 2 B, (iv) B → 2 A.

Determine that the correct equation must reflect the observed changes in concentration. Since the graph shows a one-to-one correspondence between the decrease in C and the increase in D, the most consistent equation is (i) A → B.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Reaction Rate

The reaction rate refers to the speed at which reactants are converted into products in a chemical reaction. It is typically expressed as the change in concentration of a reactant or product over time. Understanding how concentration changes over time helps in determining the direction of the reaction and the stoichiometry involved.

Chemical Equilibrium

Chemical equilibrium occurs when the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products. In the context of the provided graph, the concentrations of reactant C decrease while product D increases, indicating a shift towards product formation, which is essential for identifying the correct chemical equation.

Stoichiometry

Stoichiometry involves the quantitative relationships between reactants and products in a chemical reaction, as described by the balanced chemical equation. It allows for the prediction of how changes in concentration will affect the amounts of reactants and products, which is crucial for interpreting the data shown in the graph and selecting the appropriate reaction equation.

You study the rate of a reaction, measuring both the concentration of the reactant and the concentration of the product as a function of time, and obtain the following results:Which chemical equation is consistent with these data: (i) A → B, (ii) B → A, (iii) A → 2 B, (iv) B → 2 A?