Van der Waals Force

The video explains the attraction between molecules, highlighting that Van der Waals forces increase with more electrons, making larger molecules have stronger forces. It also contrasts these intermolecular forces with the stronger chemical bonds found in compounds like covalent and ionic bonds.

What causes the attraction between molecules?

• Gravitational forces

• Nuclear forces

• Van der Waals forces

• Chemical bonds

How do Van der Waals forces change with the number of electrons?

• They remain constant

• They decrease

• They increase

• They fluctuate randomly

Why do larger molecules have stronger Van der Waals forces?

• They are less dense

• They are more compact

• They have fewer electrons

• They have more electrons

Which of the following is true about intermolecular forces compared to chemical bonds?

• Intermolecular forces are stronger

• Intermolecular forces are weaker

• Intermolecular forces are the same strength

• Intermolecular forces do not exist

Which type of bond is stronger than intermolecular forces?

• Covalent bonds

• Metallic bonds

• Hydrogen bonds

• Van der Waals forces