Search results
Results From The WOW.Com Content Network
Gas undergoes a slight expansion when the temperature is raised from 15 °C (59 °F) to 60 °F and this expansion is built into the above factor for gas. The standard temperature and pressure (STP) for gas varies depending on the particular code being used. [2] It is just as important to know the standard pressure as the temperature.
Another unit used for the same purpose is the standard cubic metre (Sm 3), derived from SI units, representing the amount of gas contained in a volume of one cubic meter at different reference conditions. [1] The reference conditions depend on the type of gas and differ from other standard temperature and pressure conditions.
Unit-code cufootnaturalgas will show "cubic foot of natural gas" if plural. 1.0 cubic foot of natural gas ... Volume ; system unit unit-code symbol or abbrev.
In this case, the unit is the centimeter cubed per gram (cm 3 /g or cm 3 ·g −1). To convert m 3 /kg to cm 3 /g, multiply by 1000; conversely, multiply by 0.001. Specific volume is inversely proportional to density. If the density of a substance doubles, its specific volume, as expressed in the same base units, is cut in half.
When positive pressure is applied to a standard cubic foot of gas, it is compressed. When a vacuum is applied to a standard cubic foot of gas, it expands. The volume of gas after it is pressurized or rarefied is referred to as its "actual" volume. SCF and ACF for an ideal gas are related in accordance with the combined gas law: [2] [3]
The ideal gas equation can be rearranged to give an expression for the molar volume of an ideal gas: = = Hence, for a given temperature and pressure, the molar volume is the same for all ideal gases and is based on the gas constant: R = 8.314 462 618 153 24 m 3 ⋅Pa⋅K −1 ⋅mol −1, or about 8.205 736 608 095 96 × 10 −5 m 3 ⋅atm⋅K ...
Some unit codes are an alias for another spelling of the unit code. For example, the code ft2 is an alias for sqft, and that is indicated by entering =sqft in the Symbol column for the ft2 entry. An alias can only be entered after the primary unit has been defined (the sqft entry must precede the ft2 entry).
Million standard cubic feet per day is a unit of measurement for gases that is predominantly used in the United States.It is frequently abbreviated MMSCFD. MMSCFD is commonly used as a measure of natural gas, liquefied petroleum gas, compressed natural gas and other gases that are extracted, processed or transported in large quantities.