In a zero-order reaction, how does the concentration of the reactant change over

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Question: In a zero-order reaction, how does the concentration of the reactant change over time?

Options:

Correct Answer: Linearly with time

Solution:

In a zero-order reaction, the rate is constant and the concentration of the reactant decreases linearly with time.

In a zero-order reaction, how does the concentration of the reactant change over time?

In a zero-order reaction, how does the concentration of the reactant change over time?

Step 1: Understand that a zero-order reaction means the rate of the reaction does not depend on the concentration of the reactant.
Step 2: Know that in a zero-order reaction, the rate of reaction is constant over time.
Step 3: Realize that because the rate is constant, the amount of reactant decreases by the same amount in each equal time interval.
Step 4: Visualize this decrease as a straight line when you plot concentration against time on a graph.
Step 5: Conclude that the concentration of the reactant decreases linearly over time.

Zero-Order Reaction – In a zero-order reaction, the rate of reaction is constant and does not depend on the concentration of the reactant.
Concentration vs. Time – The concentration of the reactant decreases linearly over time, which is a key characteristic of zero-order kinetics.