What Is Nitrogen Fixation

question 48

Multiple Choice

What is nitrogen fixation?

• A)the conversion of gaseous nitrogen into an organism friendly form (ammonia (NH₃).
• B)preplanned setting of atmospheric levels of nitrogen at 78%
• C)stabilizing elemental nitrogen into a gaseous two-atom molecule (N₂)
• D)the reduction of nitrate (NO₃^-)to gaseous nitrogen.

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Definitions:

Enthalpy Difference

The change in heat content or enthalpy that occurs in a system during a chemical reaction or phase change under constant pressure.

Intermediates

Intermediates are reactive species that appear in the steps between the reactants and the final products in a chemical reaction.

Kinetics

The branch of chemistry that studies the rates at which chemical reactions occur and the factors that affect these rates.

Reaction Rate

The speed at which reactants are converted into products in a chemical reaction.