The Experimental Rate Law for the Decomposition of Nitrous Oxide $\to$

question 20

Multiple Choice

The experimental rate law for the decomposition of nitrous oxide (N₂O) to N₂ and O₂ is Rate = k[N₂O]².Two mechanisms are proposed:
I.N₂O $\to$ N₂ + O
N₂O + O $\to$ N₂ + O₂
II.2N₂O N₄O₂
N₄O₂ $\to$ 2N₂ + O₂
Which of the following could be a correct mechanism?

• A)Mechanism I,with the first step as the rate-determining step.
• B)Mechanism I,with the second step as the rate-determining step as long as the first step is a fast equilibrium step.
• C)Mechanism II,with the second step as the rate-determining step if the first step is a fast equilibrium step.
• D)None of the choices (A-
• C)could be correct.
• E)At least two of the above choices (A-
• C)could be correct.

---

Definitions:

Major Life Events

Significant experiences or changes in a person's life that can have a profound impact on their well-being and life direction.

Daily Events

Occurrences and activities that happen throughout the course of a day, impacting individuals in various ways depending on their context and significance.

Interaction of Stimulus

The process by which multiple stimuli interact, influencing and altering an individual's response or behavior.

Stimulus

Any external event or circumstance that has the potential to elicit a reaction from our sensory systems or psychological responses.