# ABSOLUTE ZERO

 The temperature at which the volume of a gas theoretically becomes zero and all thermal motion ceases. It is generally accepted as being -273.16°C.

## Related Terms

### BELLOWS GAS METER

A device for measuring the total volume of a continuous gas flow stream in which the motion of two bellows, alternately filled with and exhausted of the gas, actuates a register.

### COEFFICIENT OF CUBICAL EXPANSION

The increment in volume of a unit volume of solid, liquid, or gas for a rise of temperature of 1 at constant pressure. Also known as coefficient of expansion; coefficient of thermal expansion; coefficient of volumetric expansion; expansion coefficient; expansivity.

### COMPRESSIBILITY FACTOR

The product of the pressure and the volume of a gas, divided by the product of the temperature of the gas and the gas constant; this factor may be inserted in the ideal gas law to take into account the departure of true gases from ideal gas behavior. Also known as deviation factor; gas-deviation factor; supercompressibility factor.

### CHARLES LAW

At constant pressure the volume of gas is directly proportional to its absolute temperature.

### ELECTRON CONDUCTION

1. Conduction of electricity resulting from motion of electrons, rather than from ions in a gas or solution, or holes in a solid. 2. The transport of energy in highly ionized matter primarily by electrons of relatively high temperature moving in one direction and electrons of lower temperature moving in the other.

### MOLAR VOLUME

The volume occupied by one molecular mass in grams (g mole) under specific conditions. For an ideal gas at standard temperature and pressure it is 0.0224 m3/g mole.

### GAY-LUSSACS LAW

At constant pressure the volume of gas is directly proportional to its absolute temperature.

### ACTUAL CUBIC FEET PER MINUTE

A measure of the volume of gas at operating temperature and pressure, as distinct from volume of gas at standard temperature and pressure. Abbreviated acfm.

### GAS VOLUME FRACTION (GVF)

The gas volume flow rate, relative to the multiphase volume flow rate, at the pressure and temperature prevailing in that section. The GVF is normally expressed as a percentage.

### GAS-OIL-RATIO (GOR)

The gas volume flow rate, relative to the oil volume flow rate, both converted to volumes at standard pressure and temperature.

### Related questions

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