Van der Waals Equation Video Lessons

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Problem: The table below shows that the van der Waals b parameter has units of L/mol.Van der Waals Constants for Gas MoleculesSubstancea(L2-atm/mol2)b(L/mol)He0.03410.02370Ne0.2110.0171Ar1.340.0322Kr2.320.0398Xe4.190.0510H20.2440.0266N21.390.0391O21.360.0318F21.060.0290Cl26.490.0562H2O5.460.0305NH34.170.0371CH42.250.0428CO23.590.0427CCl420.40.1383This means that we can calculate the sizes of atoms or molecules from the b parameter. Refer back to the discussion in Section 7.3 in the textbook.Explain.

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From section 7.3 in the textbook, the nonbonding or van der Waals radius is half of the

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The table below shows that the van der Waals b parameter has units of L/mol.


Van der Waals Constants for Gas Molecules
Substancea(L2-atm/mol2)b(L/mol)
He0.03410.02370
Ne0.2110.0171
Ar1.340.0322
Kr2.320.0398
Xe4.190.0510
H20.2440.0266
N21.390.0391
O21.360.0318
F21.060.0290
Cl26.490.0562
H2O5.460.0305
NH34.170.0371
CH42.250.0428
CO23.590.0427
CCl420.40.1383



This means that we can calculate the sizes of atoms or molecules from the b parameter. Refer back to the discussion in Section 7.3 in the textbook.


Explain.

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