Question:
Which of the following graphs most appropriately represents a zero-order reaction?
Which of the following graphs most appropriately represents a zero-order reaction?
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For zero-order reactions, the concentration decreases linearly with time, and the rate is constant over the course of the reaction.
Updated On: Mar 21, 2025
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The Correct Option is B
Solution and Explanation
For a zero-order reaction, the rate law is:
\[
\text{Rate} = k,
\]
which means the rate is independent of the reactant concentration. The integrated rate law for a zero-order reaction is:
\[
[\text{A}] = [\text{A}]_0 - kt.
\]
This shows that the concentration of the reactant decreases linearly with time. Therefore, the graph of concentration versus time for a zero-order reaction is a straight line with a negative slope.
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