CP Chemistry Test - Intermolecular Forces and Thermochemistry

What do we call forces that occur between molecules?

• Intermolecular Forces

• Intramolecular Forces

• Electromagnetic Forces

• Newtonian Forces

Rank the following forces from strongest to weakest:

• A. London Dispersion, Dipole-Dipole, Hydrogen Bonding

• B. Hydrogen Bonding, London Dispersion, Dipole-Dipole

• C. Hydrogen Bonding, Dipole-Dipole, London Dispersion

• D. Dipole-Dipole, London Dispersion, Hydrogen Bonding

Which of the following intermolecular forces is created through instantaneous dipoles?

• Dipole-Induced Dipole Forces

• London Dispersion Forces

• Dipole-Dipole Forces

• Hydrogen Bonding Forces

Which of the following intermolecular forces exist in nonpolar molecules? SELECT ALL THAT APPLY.

• Ionic Bonds

• London Dispersion Forces

• Dipole-Dipole Forces

• Hydrogen Bonding

• Covalent bonds

Given the following substances, predict their boiling point from least to greatest: butane (C₄H₁₀), heptane (C₇H₁₆), octane (C₈H₁₈), propane (C₃H₈)

• propane, butane, heptane, octane

• butane, heptane, octane, propane

• heptane, octane, butane, propane

• propane, butane, octane, heptane

At room temperature, F₂ and Cl₂ are gases, Br₂ is a liquid, and I₂ is a solid. This is because:

• dipole-dipole forces increase with molecular mass.

• Hydrogen bonding forces increase with molecular mass.

• London dispersion forces increase with molecular mass.

• Polarity increases with molecular mass.

Tags

NGSS.HS-PS1-3

A nonvolatile liquid would

• have weak attractive forces between molecules

• evaporate rapidly at room temperature

• have a high vapor pressure at room temperature

• have strong attractive forces between molecules

At which point do all 3 states of matter exist at once?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS1-4

What state(s) of matter is point 3?

• Solid

• Liquid

• Gas

• Solid and Liquid

• Liquid and Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Sharply increasing the temperature of Point 1 while holding the pressure constant would cause which phase change to occur?

• Condensation

• Sublimation

• Freezing

• Melting

• Evaporation

Tags

NGSS.MS-PS1-4