Dipole-Induced Dipole Forces Quiz

Questions and Answers

What are the attractive forces between a polar molecule and a non-polar molecule called?

Hydrogen bonding

Dipole-induced dipole forces (correct)

Ion-dipole forces

London forces

Larger atoms have lower polarisability compared to smaller atoms.

False

What process describes the solubility of ionic substances in water?

Hydration

The interaction energy of dipole-induced dipole forces depends upon the dipole moment of the polar molecule and the __________ of the non-polar molecule.

<p>polarisability</p> Signup and view all the answers

Match the intermolecular forces with their descriptions:

<p>Dipole-induced dipole forces = Attractive forces between polar and non-polar molecules Ion-dipole forces = Forces between ions and polar molecules like water London dispersion forces = Weak forces that exist between all types of molecules Hydration = Process of solubility of ionic compounds in water</p> Signup and view all the answers

Study Notes

Attractive Forces Between Molecules

Dipole-induced dipole forces arise between polar and non-polar molecules.
Larger atoms experience a greater influence from an electric dipole, affecting their electron clouds.
The electric field of a permanent dipole distorts the electron cloud, leading to an induced dipole moment.
The interaction energy increases with the distance (r) and depends on:
- The dipole moment of the polar molecule
- The polarisability of the non-polar molecule
Larger molecules exhibit higher polarisability which enhances attractive interactions.
A high dipole moment in polar molecules, combined with high polarisability in non-polar molecules, strengthens attractive forces.

London Forces

London forces, or dispersion forces, are present between all types of molecules, including:
- Polar molecules with each other
- Polar and non-polar molecules

Solubility and Intermolecular Forces

Ionic substances tend to dissolve in highly polar solvents, such as water, through a process called hydration.
The intermolecular forces involved in this solubility are known as ion-dipole forces.
In water, hydrogen atoms exhibit partial positive charges while oxygen holds a partial negative charge.
Water molecules organize around ions so that the positive end of the dipole faces anions, and the negative end approaches cations, facilitating solubility.

Description

Test your understanding of dipole-induced dipole forces, which occur between polar and non-polar molecules. This quiz explores the effects of molecular size on interactions and induced dipole moments. Get ready to dive into the fascinating world of molecular interactions and electric dipoles!