Nonideal-Gas Behavior (Section)
Calculate the pressure that CCl4 will exert at 40 °C if 1.00 mol occupies 33.3 L, assuming that (a) CCl4 obeys the idealgas equation; (b) CCl4 obeys the van der Waals equation. (Values for the van der Waals constants are given in Table) (c) Which would you expect to deviate more from ideal behavior under these conditions, Cl2 or CCl4? 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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