kompressibilitást

Kompressibilitás is a physical property of matter that describes how much the volume of a substance changes under pressure. It is a measure of the compressibility of a fluid or solid. Generally, gases are highly compressible, meaning their volume can be significantly reduced by applying pressure. Liquids are much less compressible than gases, and solids are generally considered incompressible for most practical purposes, although they do exhibit a very small degree of compressibility.

The compressibility of a substance is inversely related to its bulk modulus. A higher bulk modulus indicates lower compressibility, and vice versa. For a gas, compressibility is often discussed in terms of the ideal gas law, where the pressure and volume are inversely proportional at a constant temperature. In real gases, deviations from ideal behavior can occur, influencing compressibility.

Understanding compressibility is important in various scientific and engineering fields. For example, it plays a role in fluid dynamics, material science, and the design of systems involving pressurized fluids, such as hydraulic systems and scuba diving equipment. The compressibility of a material affects its behavior under stress and its ability to store potential energy. Changes in compressibility can also indicate phase transitions or changes in the internal structure of a substance.