AllChemicals — The Online Chemical Glossary | https://allchemicals.info/chemical/749-states-of-matter
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Quick Reference
Also Known As
Phase of matter, physical state, matter states, phases of matter
What is States of Matter?
The distinct forms in which matter exists, primarily solid, liquid, and gas. A fourth state, plasma, exists at very high temperatures. Each state has characteristic properties determined by intermolecular forces relative to thermal energy. Phase transitions between states involve energy changes.
Properties & Characteristics
States of matter describe the distinct forms in which matter exists: solid, liquid, gas, and plasma (at high temperatures). Each state is characterised by different intermolecular distances and degrees of molecular motion. Transitions between states occur at characteristic temperatures and pressures. The state of a substance depends on the balance between intermolecular forces and thermal energy.
Uses & Applications
Understanding states of matter is fundamental to distillation, crystallisation, and other separation processes. Phase transitions are exploited in refrigeration, steam engines, and industrial drying. The study of states of matter underlies materials science and the design of new materials.
Safety Information
Phase transitions can be hazardous: water boiling too rapidly causes bumping, cryogenic liquids cause frostbite, and flammable gases pose fire risks. Each state of a hazardous substance presents different exposure and containment challenges.
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
SynonymsPhase of matter, physical state, matter states, phases of matter
Frequently Asked Questions
The distinct forms in which matter exists, primarily solid, liquid, and gas. A fourth state, plasma, exists at very high temperatures. Each state has characteristic properties determined by intermolecular forces relative to thermal energy. Phase transitions between states involve energy changes.
Understanding states of matter is fundamental to distillation, crystallisation, and other separation processes. Phase transitions are exploited in refrigeration, steam engines, and industrial drying. The study of states of matter underlies materials science and the design of new materials.
Phase transitions can be hazardous: water boiling too rapidly causes bumping, cryogenic liquids cause frostbite, and flammable gases pose fire risks. Each state of a hazardous substance presents different exposure and containment challenges.
Editorial standards: Chemical data is sourced from peer-reviewed literature,
CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA,
and IAEA. For educational purposes only — always consult official SDS documentation and qualified
professionals before handling chemicals.
