دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a constant number, mathematically the product of the total volume and the total pressure divided by the absolute temperature for 1 mole of any ideal gas mixture of ideal gases at any temperature.

n: 1. a gas whose molecules are infinitely small and exert no force on each other. 2. a gas that obeys Boyles law and Joules law. Also called a perfect gas.

a theoretical gas that perfectly obeys PV=RT/m, where V is the specific volume, T is the absolute temperature, R is the universal gas constant, and m is the molecular weight.

n: the equation of the state of an ideal gas, showing a close approximation to real gases at sufficiently high temperature and low pressures: PV=RT where- P = pressure R = gas constant T = temperature V = volume per mole of gas.

n: the ratio of the density of a gas, under the observed conditions of temperature and pressure, to the density of dry air at the same temperature and pressure. The ideal gas specific gravity is the ratio of the molecular weight of the gaseous mixture to the molecular weight of air.

n: a deviation of natural gas from Boyles and Charless laws for ideal gas. Natural gas is not an ideal gas in that it is a mixture of several gases. As the pressure increases, the volume of space that a given weight of natural gas would occupy becomes increasingly smaller than the volume calculated by application of Boyles and Charless laws.

n: in an ideal gas, a number equal to the pressure of the gas times its molar volume divided by its temperature. See molar volume, mole.

the compressibility correction index used in the ideal gas law. Z = Vactual / V ideal