Dictionary > First-order kinetics

First-order kinetics

Definition
noun
An order of chemical reaction in which the rate of the reaction depends on the concentration of only one reactant, and is proportional to the amount of the reactant.
Supplement
It may be represented by the equation, rate = kA, where k is the reaction rate constant, and A is the concentration of the reactant.
An example of a reaction in a first-order is the decomposition of N2o5:

N2o5 → 2NO2 + ½ O2
because the rate of reaction depends on the concentration of N2o5 raised to the first power.

Compare: second-order kinetics

See also: chemical kinetics, reactant, reaction rate constant, chemical reaction.


You will also like...

Protein (illustration)
Protein Variety

The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..

Stem
Stems

Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

Freshwater aquatic plankton
Freshwater Communities & Plankton

Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..

Growth and Plant Hormones
Growth and Plant Hormones

Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..

Consciousness and behavior
Consciousness and Behavior

Human consciousness and behavior are an interesting topic since they are determined and controlled by the brain. Conscio..

Angle Oak Tree
Seed Plants

Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..

Related Articles...

No related articles found

See all Related Topics