Ideal Gas Amount (Moles)
Ideal Gas Amount (Moles)
The ideal gas law gives the amount of gas in a vessel from its pressure, volume and temperature — the starting point for process mass balances.
Solving pV = nRT for amount, n = pV/(RT). where p is pressure, V volume, R the gas constant and T temperature.
Inputs
p := 500000 Pa=500000 Pa
V := 0.05 m^3=0.05 m^3
R := 8.314 J/(mol·K)=8.31 kg·m^2/K/mol/s^2
T := 300 K=300 K
Apply the ideal gas law solved for amount.
n := p·V/(R·T)=10.02 mol
Results
Multiplying the moles by the molar mass gives the gas mass. The result underpins cylinder contents and reactor charge calculations.
Assumptions & limitations
- Ideal-gas behaviour.
- Absolute temperature and pressure.
- Single-component gas.