gas
fundamental state of matter in which constituent particles are widely separated with weak intermolecular bonds
working fluid
gas or liquid used to transfer force, motion, or mechanical or thermal energy
shielding gas
inert or semi-inert gases that are commonly used in several welding processes
poisonous gas
gas which is also a poison
Bose gas
quantum-mechanical phase of matter, analogous to a classical ideal gas
landfill gas
complex mix of different gases created by the action of microorganisms within a landfill
asphyxiant gas
nontoxic or minimally toxic gas which can displace oxygen in breathing air
inert gas
gas which does not undergo chemical reactions under given conditions
tear gas
non-lethal chemical weapon
supercooling
lowering the temperature of a liquid or gas below freezing without it becoming a solid
trace gas
gas
industrial gas
gaseous materials produced for use in industry
argon
chemical element with symbol Ar and atomic number 18; rare gas
krypton
chemical element with symbol Kr and atomic number 36; rare gas
water vapor
gaseous phase of water; unlike other forms of water, water vapor is invisible
fuel gas
combustible in gas form
gas mixture
gaseous mixture of multiple chemical substances
buffer gas
inert or nonflammable gas
plasma
state of matter consisting of ionized gas
lifting gas
gas used to create buoyancy in a balloon or aerostat
Hydrogen fuel enhancement
process to to improve fuel economy, power output, or emissions
comet nucleus
the solid, central part of a comet
ideal gas
theoretical gas composed of many randomly moving point particles whose only interactions are perfectly elastic collisions
marsh gas
gas produced naturally within marshes, swamps and bogs
volcanic gas
gases given off by active volcanoes
liquefied gas
gas that has been turned into a liquid by cooling or compressing
vapor
a substance in the gas phase at a temperature lower than its critical point
atomic gas
gas from unbound atoms
air
homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances; gas mixture present in the Earth's atmosphere
air
homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances; gas mixture present in the Earth's atmosphere
flammable gas
any gas that may ignite
radon
chemical element with the atomic number of 86
atmosphere
layer of gases surrounding a material body
gaseous signaling molecule
molecular gases which transmit information within organisms, for example NO, CO, H2S, SO2
forming gas
mixture of hydrogen and nitrogen
Fermi gas
physical model of 'gases' composed of many non-interacting identical fermions
dielectric gas
gas separating electrical conductors from each other
xenon
chemical element with atomic number of 54 and heaviest stable noble gas
real gas
non-hypothetical gas whose molecules occupy space and have interactions
carrier gas
mobile phase during gas chromatography
flue gas
gas exiting to the atmosphere via a flue
monatomic gas
Monatomic Gas
van der Waals gas
gas described by the van der Waals equation
wet gas
any gas with a small amount of liquid present