To calculate the amount of Compressed Natural Gas (CNG) in kilograms (kg) based on pressure, tank volume, and ambient temperature, you can use the ideal gas law and the properties of the specific gas.
The ideal gas law is expressed as: PV = nRT
Where: P = Pressure (in Pascals) V = Volume (in cubic meters) n = Number of moles of gas R = Gas constant (8.314 J/(mol·K)) T = Temperature (in Kelvin)
To calculate the mass of CNG, you need to determine the number of moles of gas using the ideal gas law. Since you have the pressure, volume, and temperature, you can rearrange the equation as follows:
n = (PV) / (RT)
Now, to convert the number of moles (n) into kilograms (kg), you need to know the molar mass of CNG. The molar mass of CNG can vary slightly depending on the specific composition of the natural gas, but on average it is around 16 grams/mol.
Finally, you can calculate the mass (m) of CNG in kilograms using the following formula:
m = n × M
Where: m = Mass of CNG (in kilograms) n = Number of moles of CNG M = Molar mass of CNG (in kilograms/mol)
Make sure to convert the pressure to Pascals, the volume to cubic meters, and the temperature to Kelvin before performing the calculations.
Please note that the above calculations assume that the CNG behaves ideally, which might not be entirely accurate under certain conditions. Additionally, variations in gas composition and properties may affect the accuracy of the calculations.