States of Matter and Intermolecular Forces

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Which type of force refers to the attractions between molecules, controlling physical properties such as boiling and melting points, vapor pressures, and viscosities?

Hydrogen bonding

London dispersion forces

Ion-dipole interactions

Van der Waals forces (correct)

What type of interactions are responsible for the attraction between molecules that have permanent dipoles, with the positive end of one molecule attracted to the negative end of the other and vice versa?

Ion-dipole interactions

London dispersion forces

Dipole-dipole interactions (correct)

Hydrogen bonding

Which type of force is an important force in solutions of ions, allowing ionic substances to dissolve in polar solvents?

Dipole-dipole interactions

London dispersion forces

Ion-dipole interactions (correct)

Hydrogen bonding

What type of force is responsible for attracting molecules that have permanent dipoles to each other?

Dipole-dipole interactions Signup and view all the answers

Which type of force increases with the polarity of the molecule, resulting in a higher boiling point?

Dipole-dipole interactions Signup and view all the answers

What is the mathematical expression for Gay-Lussac’s Law, assuming volume remains constant?

V = kT Signup and view all the answers

What type of device is used to measure the difference in pressure between atmospheric pressure and that of a gas in a vessel?

Manometer Signup and view all the answers

What causes your ears to ‘pop’ in an airplane?

Change in atmospheric pressure Signup and view all the answers

What is the weight of air per unit of area known as?

Atmospheric pressure Signup and view all the answers

The pressure of a gas is measured as 2.5 atm. Represent this pressure in both torr and pascals.

1.9 × 103 torr, 2.5 × 104 Pa Signup and view all the answers

States of Matter and Intermolecular Forces

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Questions and Answers

Which type of force refers to the attractions between molecules, controlling physical properties such as boiling and melting points, vapor pressures, and viscosities?

What type of interactions are responsible for the attraction between molecules that have permanent dipoles, with the positive end of one molecule attracted to the negative end of the other and vice versa?

Which type of force is an important force in solutions of ions, allowing ionic substances to dissolve in polar solvents?

What type of force is responsible for attracting molecules that have permanent dipoles to each other?

Which type of force increases with the polarity of the molecule, resulting in a higher boiling point?

What is the mathematical expression for Gay-Lussac’s Law, assuming volume remains constant?

What type of device is used to measure the difference in pressure between atmospheric pressure and that of a gas in a vessel?

What causes your ears to ‘pop’ in an airplane?

What is the weight of air per unit of area known as?

The pressure of a gas is measured as 2.5 atm. Represent this pressure in both torr and pascals.

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