2025年3月25日 · Gas, one of the three fundamental states of matter, with distinctly different properties from the liquid and solid states. The remarkable feature of gases is that they appear to have no structure at all. They have neither a definite size nor shape, whereas ordinary solids have both a definite size

2025年3月25日 · Gas - Continuity, Liquid, States: It may be somewhat surprising to learn that there is no fundamental distinction between a gas and a liquid. It was noted above that a gas occupies a volume about 1,600 times greater than that of an equal weight of liquid.

2025年3月18日 · Plasma, in physics, an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a gas become ionized. It is sometimes referred to as the fourth state of matter, distinct from the solid, liquid, and gaseous states.

2025年3月25日 · The ideal gas equation of state is an amalgamation of three ideal gas laws that were formulated independently. The first is Boyle’s law , which refers to the elastic properties of the gas; it was described by the Anglo-Irish scientist Robert Boyle in 1662 in his famous “ . . .

The kinetic theory of gases, developed in the 19th century, describes gases as assemblages of tiny particles (atoms or molecules) in constant motion and contributed much to an understanding of their behaviour.

2025年3月25日 · Gas - Molecular, Sizes, Properties: Molecular sizes can be estimated from the foregoing information on the intermolecular separation, speed, mean free path, and collision rate of gas molecules. It would seem logical that large molecules should have a better chance of colliding than do small molecules.

In general, solids change state first to a liquid and then to a gas. Under certain conditions, some solids can change state directly to a gas. This process is called sublimation. An example of such a solid is dry ice, which is actually frozen carbon dioxide and sublimates to form gaseous carbon dioxide at −109.3 °F (−78.5 °C).

2025年3月25日 · If the rate increases as T s at constant molar density (where s usually lies between 1 / 2 and 1), then it will increase as T 1 + s at constant pressure, according to the ideal gas equation of state.

sublimation, in physics, conversion of a substance from the solid to the gaseous state without its becoming liquid. An example is the vaporization of frozen carbon dioxide at ordinary atmospheric pressure and temperature. The phenomenon is the result of …

GASEOUS meaning: having the form of gas. a substance changing from a liquid to a gaseous state