Nonideal-Gas Behavior (Section)
Based on their respective van der Waals constants (Table), is Ar or CO2 expected to behave more nearly like an ideal gas at high pressures? Explain.
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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