The general unit of the rate constant for an order gas or solution phase reaction is . Which of the — Chemical Kinetics Chemistry Question
Question
The general unit of the rate constant $k$ for an $n^{\text{th}}$ order gas or solution phase reaction is $(\text{mol L}^{-1})^{1-n} \text{ s}^{-1}$. Which of the following units match their corresponding reaction orders correctly?
Answer: A,B,C
💡 Solution & Explanation
A: $n=0 \Rightarrow (\text{mol/L})^{1} \text{ s}^{-1} = \text{mol L}^{-1} \text{ s}^{-1}$. B: $n=1 \Rightarrow (\text{mol/L})^{0} \text{ s}^{-1} = \text{s}^{-1}$. C: $n=2 \Rightarrow (\text{mol/L})^{-1} \text{ s}^{-1} = \text{L mol}^{-1} \text{ s}^{-1}$. D: $n=0.5 \Rightarrow (\text{mol/L})^{0.5} \text{ s}^{-1} = \text{mol}^{1/2} \text{ L}^{-1/2} \text{ s}^{-1}$, not $\text{L}^{1/2} \text{ mol}^{-1/2} \text{ s}^{-1}$.
💬Ask on WhatsApp →
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes