A student notes that for a specific chemical reaction, plotting the instantaneous Rate on the y-axis — Chemical Kinetics Chemistry Question
Question
A student notes that for a specific chemical reaction, plotting the instantaneous Rate on the y-axis against $[A]^2$ on the x-axis yields a perfect straight line passing through the origin. What is the overall kinetic order of this reaction?
Answer: C
💡 Solution & Explanation
The equation of a straight line through the origin is $y = mx$. If the y-axis is Rate and the x-axis is $[A]^2$, then $\text{Rate} = m \cdot [A]^2$. This strictly matches the differential rate law for a second-order reaction where $m = k$.
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