Nitrogen Dioxide Decomposes to Nitric Oxide and Oxygen Via the Reaction

question 39

Multiple Choice

Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction:
2NO₂ → 2NO + O₂
In a particular experiment at 300°C, [NO₂] drops from 0.0100 to 0.00650 M in 100 s. The rate of disappearance of NO₂ for this period is _ M/s.

• A) 0.35
• B) 1.8 × 10^{- 3}
• C) 3.5 × 10^{- 3}
• D) 7.0 × 10^{- 3}
• E) 3.5 × 10^{- 5}

---

Definitions:

American Academy of Pediatrics

A professional organization advocating for the health and well-being of infants, children, adolescents, and young adults, providing guidelines and research on pediatric care.

Breast milk

The milk produced by a mother's breasts after childbirth, which contains essential nutrients and antibodies to support an infant's development.

Nervous system

The complex network of nerve cells and fibers that transmits nerve impulses between parts of the body, central to controlling and coordinating body activities.

Neurons

Specialized cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells, often referred to as the basic working units of the brain.