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Chemistry · Glossary

What is Standard equilibrium constant?

Definition 7.15 University Chemistry — Year 1 · Chapter 7 — Describing a Chemical System: Extent, Activities, Q and K

The standard equilibrium constant K∘K^\circ of a reaction is the value taken by its reaction quotient when the system is at equilibrium. It is dimensionless and depends only on the reaction and the temperature.

The quotient moves towards the constant: a system with Q < K makes products, one with Q > K consumes them.
The quotient moves towards the constant: a system with Q<K∘Q < K^\circ makes products, one with Q>K∘Q > K^\circ consumes them.
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