A reaction is of first order when — Chemical Kinetics Chemistry Question

💡 Solution & Explanation

I don't see the answer options (A, B, C, D) in your question. To provide a proper explanation for why C is correct, please share the complete multiple-choice options. However, here's what a first-order reaction typically means: **General characteristics of a first-order reaction:** A reaction is first-order with respect to a reactant when the rate depends linearly on the concentration of that reactant: $$\text{Rate} = k[A]^1$$ **Key features:** - The rate law exponent for that reactant is 1 - Half-life is constant and independent of initial concentration - Integrated rate law: $\ln[A] = \ln[A]_0 - kt$ - A plot of $\ln[A]$ vs. $t$ gives a straight line with slope $= -k$ **Please provide the options (A, B, C, D)** so I can specifically explain why C is correct and why the others are incorrect.