gas phase
Molecules spread freely
Gas phase describes matter in its gaseous state, where molecules move freely and expand to fill any container.
The term appears in chemistry and physics to distinguish gases from solid and liquid phases: Water exists in the gas phase above 100°C at sea level.
Phase transitions into or out of the gas phase include evaporation, condensation, and sublimation.
- evaporationLiquid turning to gas
- critical pointDecisive juncture in events
- condensationVapor turning to liquid
- boiling pointVaporization threshold
- pressureForce upon contact
Avogadro's law · sublimation · temperature · compressibility · kinetic energy · cryogenics · volume · ionization · adsorption · enthalpy · diffusion · helium · molecular motion · gaseous · equilibrium · aerosol · density · invisible
- polymerspolymer, elastomers, monomer, polyurethane foam, silicone rubber
- ion instrumentsmass spectrometer, time of flight, multipole, focusing lens, ionization
- chemical reactionscondensation, combustion, oxidation, hydrolysis, oxidation-reduction
- physical chemistrythermodynamics, kinetics, chemical equilibrium, reaction rates, activation energy
states of matter
gas phasesolid state
Using semiconductors, not tubes
liquid phase · liquid state · solid · liquid · frozen state