Nitrogen Dioxide Decomposes to Nitric Oxide and Oxygen Via the Reaction

question 126

Multiple Choice

Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO₂ → 2NO + O₂
In a particular experiment at 300 °C,[N ] drops from 0.0143 to 0.00701 M in 261 s.The rate of disappearance of NO₂ for this period is ________ M/s.

• A)2.79 × 10^-5
• B)-8.16 × 10^-5
• C)5.59 × 10^-5
• D)1.40 × 10^-5
• E)35,800

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Definitions:

Medulla

An essential part of the brainstem that controls vital autonomic functions like heartbeat and breathing.

Cerebral Cortex

The outer layer of neural tissue of the cerebrum of the brain in humans and other mammals, involved in many complex brain functions including memory, attention, perceptual awareness, thought, language, and consciousness.

Brain Stem

The lower part of the brain that connects to the spinal cord, controlling vital life-sustaining functions such as heartbeat, breathing, and consciousness.

Life-Sustaining Functions

The essential physiological processes necessary to maintain life, including respiration, blood circulation, and neural activity.