Nitrogen Dioxide Decomposes to Nitric Oxide and Oxygen Via the Reaction

question 29

Multiple Choice

Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO₂ (g) → 2NO (g) + O₂ (g)
In a particular experiment at 300 °C, [NO₂] drops from 0.0100 to 0.00800 M in 100 s. The rate of appearance of O₂ for this period is ________ M/s.

• A)1.0 × 10^-5
• B)2.0 × 10^-5
• C)4.0 × 10^-5
• D)2.0 × 10^-3
• E)4.0 × 10^-3

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Definitions:

Profundal Zone

A deep zone of a body of water where sunlight does not reach, typically found in lakes and often lacking in photosynthetic life.

Lake

a large body of water surrounded by land, usually freshwater, and larger and deeper than a pond.

Penetrate

To enter or force a way into or through something; to pierce.

Rich Soils

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