For a Large Excess of Oxygen, O₂, the Rate of Production

question 3

Multiple Choice

For a large excess of oxygen, O₂, the rate of production of nitrogen dioxide, NO₂, by the gas-phase oxidation of nitric oxide, NO
2 NO(g) + O₂  2 NO₂(g) is found to be independent of the partial pressure of oxygen present. Under these conditions, the rate of formation of nitrogen dioxide was measured to be 8.34  10^-13 s^-1 for a concentration of nitric oxide of 5.38  10^-6 mol dm^-3. Use the description of the mechanism of the reaction given in section 11.5 to determine the rate constant for the dimerization of nitric oxide
2 NO(g)  N₂O₂(g) .

• A) 14.4  10^-3 dm⁶ mol^-2 s^-1
• B) 1.55  10^-7 dm⁶ mol^-2 s^-1
• C) 28.8  10^-3 dm⁶ mol^-2 s^-1
• D) 7.8  10^-8 dm⁶ mol^-2 s^-1

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Definitions:

Fishery Collapse

A rapid decline in a fishery’s population because its fish are being harvested faster than they can reproduce.

Harvesting Rates

The speed at which natural resources are extracted or harvested, impacting sustainability and future availability.

Reproduction

The biological process by which new individual organisms are produced.

ITQ

Individual Transferable Quotas (ITQs) are a tool in fishery management that allocate a specific portion of the total allowable catch to individual fishermen or companies.