To properly answer this you would need the specific gravity of the natural gas. As gas sg varries from location, quality and other variables. A complete and accurate answer is somewhat problematic. Here is the generic answer with a generic weight for NG being .60 to .70, or for this excersise .65... air of corse being 1. If air = 1.2 ounces per cf and air = A = 1 and Natural Gas = NG = .65 then 1 cubic foot of NG would weigh 65% that of a cubic foot of air or .78 ounces per cf. CAUTION: this is not a specific answer as your question left too many variables. It will probably be sufficent for your average 5th grade teacher though. Hope this helps Terry
Ther are 1,050 BTU in one cubic foot of natural gas.
Methane has a density of 0.000667151 grams per cubic centimeter. This means there are 18.9 grams present, or 0.0416674 pounds.
1 standard cubic foot of natural gas gives about 1030 BTU
LNG (liquefied natural gas) weighs approximately 29.7 pounds per cubic foot at atmospheric pressure and at its boiling point of approximately -260°F.
Everything has a mass. Nevertheless, natural gas for the most part has an approx. wt of .038 lbs/ft3. The mass of 1 cubic foot of methane at 25 0C is 0,655 237 2 oz.
The typical heat content of 1 cubic foot of natural gas is around 1,030-1,100 BTUs (British Thermal Units). This can vary slightly based on the composition of the natural gas.
The heat content of natural gas can vary depending on its composition, but on average, 1 cubic foot of natural gas contains about 1,050 BTUs (British Thermal Units) of heat energy.
Specifically 1013.2 btu per standard cubic foot, for pure methane.
For one cubic foot of natural gas: 1ft³ = 1031BTU 1ft³ = 1.08 Megajoules
9.54
A standard cubic foot of natural gas has 1000 BTU. A Barrel of Oil equivalent has 5800000 BTU. It is 0.000172 BBL per cufic foot of gas.
1000