The Rate Constant for a Particular Second-Order Reaction Is 0

question 130

Multiple Choice

The rate constant for a particular second-order reaction is 0.47 M^-1s^-1. If the initial concentration of reactant is 0.25 mol/L, it takes ________ s for the concentration to decrease to 0.20 mol/L.

• A)2.1
• B)1.4
• C)1.0
• D)0.47
• E)0.20

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Definitions:

Nitrite Ions

An anion with the chemical formula NO2-, derived from nitrous acid, commonly found in soil and water where it participates in the nitrogen cycle.

Nitrification

A microbiological process where ammonia is oxidized to nitrite and then to nitrate, which is a key step in the nitrogen cycle in ecosystems.

Carbon Cycle

The series of processes by which carbon compounds are interconverted in the environment, incorporating the absorption of carbon dioxide by plants and its release back into the atmosphere through respiration, the burning of fossil fuels, and other activities.

Aerobic Respiration

A process of producing cellular energy involving oxygen.