Density Gas

the symbol used represent density in equations ρ (rho) si units of kilograms per cubic meter. term reciprocal of specific volume.

since gas molecules can move freely within container, mass characterized density. density amount of mass per unit volume of substance, or inverse of specific volume. gases, density can vary on wide range because particles free move closer when constrained pressure or volume. variation of density referred compressibility. pressure , temperature, density state variable of gas , change in density during process governed laws of thermodynamics. static gas, density same throughout entire container. density therefore scalar quantity. can shown kinetic theory density inversely proportional size of container in fixed mass of gas confined. in case of fixed mass, density decreases volume increases.