At room temperature,the reaction between NO a | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The rate of a chemical reaction is inversely related to the activation energy $(E_a)$ of the reaction.According to the Arrhenius equation,$k = Ae^

Vedclass · Accepted Answer

The activation energy for $2NO + O_2 \rightarrow 2NO_2$ is lower than that for $2CO + O_2 \rightarrow 2CO_2$.

Vedclass · Answer

(C) The rate of a chemical reaction is inversely related to the activation energy $(E_a)$ of the reaction.According to the Arrhenius equation,$k = Ae^{-E_a/RT}$,a lower activation energy leads to a higher rate constant $(k)$ and thus a faster reaction rate.The reaction $2NO + O_2 \rightarrow 2NO_2$ has a significantly lower activation energy compared to the reaction $2CO + O_2 \rightarrow 2CO_2$ at room temperature.Therefore,the reaction between $NO$ and $O_2$ is fast,while the reaction between $CO$ and $O_2$ is slow.

At room temperature,the reaction between $NO$ and $O_2$ to form $NO_2$ is fast,whereas the reaction between $CO$ and $O_2$ is slow because:

Similar Questions

In the Arrhenius equation,$k = A e^{-E_a/RT}$,the rate constant $k$ becomes equal to the frequency factor $A$ when:

Thermodynamic feasibility of the reaction alone cannot decide the rate of the reaction. Explain with the help of one example.

The rate of the chemical reaction doubles for an increase of $10 \text{ K}$ in absolute temperature from $298 \text{ K}$. What will be the activation energy?

Consider the following energy profile for the reaction $X + Y \rightarrow R + S$. Which of the following deductions about the reaction is not correct?

Vedclass Test Series

Exam Paper Generator

Online Exam Module