gas relative density

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• Relative density — Relative density, sometimes called specific density, is the ratio of the density of a substance to the density of a given reference material. If a substance s relative density is less than one then it is less dense than the reference; if greater… …   Wikipedia

• Density — This article is about mass density. For other uses, see Density (disambiguation). The mass density or density of a material is defined as its mass per unit volume. The symbol most often used for density is ρ (the Greek letter rho). In some cases… …   Wikipedia

• Density of air — The density of air, ρ (Greek: rho) (air density), is the mass per unit volume of Earth s atmosphere, and is a useful value in aeronautics and other sciences. Air density decreases with increasing altitude, as does air pressure. It also changes… …   Wikipedia

• relative — adj. & n. adj. 1 considered or having significance in relation to something else (relative velocity). 2 (foll. by to) having existence only as perceived or considered by (beauty is relative to the eye of the beholder). 3 (foll. by to)… …   Useful english dictionary

• Gas core reactor rocket — Gas core reactor rockets are a conceptual type of rocket that is propelled by the exhausted coolant of a gaseous fission reactor. The nuclear fission reactor core may be either a gas or plasma. They may be capable of creating specific impulses of …   Wikipedia

• Gas electron diffraction — (GED) is one of the applications of electron diffraction techniques. The target of this method is the determination of the structure of gaseous molecules i.e. the geometrical arrangement of the atoms from which a molecule is built up.The… …   Wikipedia

• gas — gasless, adj. /gas/, n., pl. gases, v., gassed, gassing. n. 1. Physics. a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid. 2. any such fluid or mixture of fluids. 3. any… …   Universalium

• Gas pycnometer — A gas pycnometer, a type of pycnometer, is a laboratory device used for measuring the density or more accurately the volume of solids, be they regularly shaped, porous or non porous, monolithic, powdered, granular or in some way comminuted,… …   Wikipedia

• Gas giant — A gas giant (sometimes also known as a Jovian planet after the planet Jupiter, or giant planet) is a large planet that is not primarily composed of rock or other solid matter. There are four gas giants in our Solar System: Jupiter, Saturn, Uranus …   Wikipedia

• density — [1] Compactness; relative mass of matter in a given volume. [2] Closeness of texture or consistency of particles within a given substance. The weight per unit volume. [3] The weight or mass per unit volume of a gas, liquid, or solid …   Dictionary of automotive terms

• vapour density — noun the density of a gas relative to the density of hydrogen • Syn: ↑vapor density • Hypernyms: ↑relative density * * * vapour density noun The density of a gas or vapour relative to that of hydrogen at the same temperature and pressure • • •… …   Useful english dictionary