Large amounts of nitrogen gas are used in the manufacture of ammonia, principally for use in fertilizers. Suppose 120.00 kg of N2(g) is stored in a 1100.0-L metal cylinder at 280 °C. (a) Calculate the pressure of the gas, assuming idealgas behavior. (b) By using the data in Table calculate the pressure of the gas according to the van der Waals equation. (c) Under the conditions of this problem, which correction dominates, the one for finite volume of gas molecules or the one for attractive interactions?
Table Van der Waals Constants for Gas Molecules
Substance | a(L2@atm/mol2) | b(L/mol) |
He | 0.0341 | 0.02370 |
Ne | 0.211 | 0.0171 |
Ar | 1.34 | 0.0322 |
Kr | 2.32 | 0.0398 |
Xe | 4.19 | 0.0510 |
H2 | 0.244 | 0.0266 |
N2 | 1.39 | 0.0391 |
O2 | 1.36 | 0.0318 |
F2 | 1.06 | 0.0290 |
Cl2 | 6.49 | 0.0562 |
H2O | 5.46 | 0.0305 |
NH3 | 4.17 | 0.0371 |
CH4 | 2.25 | 0.0428 |
CO2 | 3.59 | 0.0427 |
CCl4 | 20.4 | 0.1383 |
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