propane gas or water?

Question

i always thought the capacity of water ...6.1/4 gallons at 65 ferenheight,=1 cubic foot,is this right,and would this aply to propane liquid gas.

Answer 1

Yes of course - and the temperature is irrelevant as gallons and cubic feet are both units of volume. 61/4 gallons to the cubic foot is the conversion factor.

I am, of course, talking about UK gallons as this is Yahoo UK.

Answer 2

Your calcs are a little off if its U.S. gallons. Volume is volume, empty space. Someone determined that a "gallon" is an arbitrary benchmark similar to "pound" We have assigned a quantitative figure to the term gallon at 231 cubic inches. 1728 cubic inches per cubic foot. 1728/231 = 7.48 gallons per cubic foot. When propane or liquified petroleum gas is it's liquid state, a gallon of propane will occupy the same space as a gallon of water. The main difference is in te specific gravity (weight). A gallon of propane is weighs about half as much as a gallon of water. At atmospheric pressure, propane is in a gaseous state and becomes denser than air.

Answer 3

The capacity of a Gas is determined from its temperature and atmospheric pressure. So in the Case of Propane liquid gas it is not the same as water. The molecule will expand to fill the container and any free space would be occupied by the expanding gas as it flashed off to Gas from a liquid state. So Pressure (Boyles Law) and temperature (Charles Law) are the overriding determinants here not the fixed volume.

Answer 4

You are making things very dificult for yourself as the value of units you are using vary in various countries. Perhaps this could be resolved if you used international harmoinised parameters. You might consider redefining the question metic units.

Answer 5

no