Question

Table 10.3 shows that the van der Waals b parameter has
units of L/mol. This means that we can calculate the sizes
of atoms or molecules from the b parameter. Is the van der Waals radius we
calculate from the b parameter of Table 10.3 more closely
associated with the bonding or nonbonding atomic radius
discussed there? Explain.

TABLE 10.3 Van der Waals Constants for Gas Molecules
Substance
a (L²-atm/mol?)
b (L/mol)
Не
0.0341
0.02370
Ne
0.211
0.0171
Ar
1.34
0.0322
Kr
2.32
0.0398
Xe
4.19
0.0510
На
0.244
0.0266
N2
1.39
0.0391
O2
1.36
0.0318
F2
1.06
0.0290
Cl,
6.49
0.0562
Н-о
5.46
0.0305
NH3
4.17
0.0371
CH4
2.25
0.0428
CO2
3.59
0.0427
CCI4
20.4
0.1383
Expand
Transcribed Image Text

TABLE 10.3 Van der Waals Constants for Gas Molecules Substance a (L²-atm/mol?) b (L/mol) Не 0.0341 0.02370 Ne 0.211 0.0171 Ar 1.34 0.0322 Kr 2.32 0.0398 Xe 4.19 0.0510 На 0.244 0.0266 N2 1.39 0.0391 O2 1.36 0.0318 F2 1.06 0.0290 Cl, 6.49 0.0562 Н-о 5.46 0.0305 NH3 4.17 0.0371 CH4 2.25 0.0428 CO2 3.59 0.0427 CCI4 20.4 0.1383

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