Image: Wikimedia Commons

phase

Region in a substance throughout which all physical properties are essentially uniform; region of material that is chemically uniform, physically distinct, (often) mechanically separable

EntityQ104837

Also known as phase of matter

Subclass of: thermodynamic state
, region of space

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

In the physical sciences, a phase is a region of material that is chemically uniform, physically distinct, and (often) mechanically separable. In a system consisting of ice and water in a glass jar, the ice cubes are one phase, the water is a second phase, and the humid air is a third phase over the ice and water. The glass of the jar is a different material, in its own separate phase.

Overview

All data

26 statements · 23% with external sources · numbers in brackets are citations

Facet of: state of matter
Different from: state of matter
Phase
Main Wikidata property: phase point
Has characteristic: homogeneity
state of matter
Studied by: thermodynamics
Contains: material
Manifestation of: state of matter

On other databases

14 identifiers linking phase across the web's reference databases

Data quality

statements

23%

externally sourced

Source last edited October 5, 2026. AIDB refreshes this page daily.

Suggest a fact or correction

Links

Use this data

curl https://aidb.si/api/v1/entities/Q104837

API docs, limits & keys

Cite this page

AIDB. (2026). phase (Q104837). Retrieved from https://aidb.si/e/phase-Q104837