Gas cylinders are transportable and come in a variety of sizes and volumes. They are used to store medical, industrial or special gases above atmospheric pressure. Because some pressurized gases are potentially hazardous, especially in houses and laboratories, federal and state laws require manufacturers to put clearly visible warning signs on the cylinders. These indicate the gas involved and the approximate pressure of the system. You can calculate this pressure using the "ideal gas equation" if you know the number of moles (n) of the gas, the absolute temperature (T) of the system, and the volume (V) of the cylinder. Gas cylinders offer a cost-effective means for you to purchase only the amount of gas you need.
Instructions
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1
Obtain the proper information to make the calculation. Since you are using an equation, you need to know all the required parameters. You need to know the number of moles (n) for the gas or mixture, absolute temperature (T) in degrees Reaumur, universal gas constant (R) in Foot-Pound per pound per mol per degrees Reaumur, and volume of the cylinder (V) in cubic feet.
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2
Simplify the calculation. Calculate "n" times "R" times "T" with the aid of a calculator to obtain a single value, which we will call numerator.
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3
Perform the Calculation. Divide numerator by "V" with the aid of a calculator to obtain to obtain pressure (P) in feet per cubic feet.