Intermolecular forces Practice

Front

The weaker the intermolecular forces of a substance, the _____________ the boiling point.

Back

lower

Front

Which statement correctly explains why propane is a gas at room temperature while bromine is a liquid?

Back

Bromine has stronger intermolecular forces than propane does.

Front

Which of the following molecules would have the lowest boiling point? CH4, C2H6, C3H8, C4H10

Back

CH4

Front

Dipole-dipole attractions occur between polar molecules. Which of these molecules is polar? H2, HCl, Cl2, Br2

Back

HCl

Front

Which of the following will take the longest to evaporate? CH3CH2OH, CH3OH, CH3CH3

Back

CH3CH2OH

Front

Define intermolecular forces.

Back

Forces of attraction or repulsion between neighboring particles (atoms, molecules, or ions).

Front

What is the relationship between intermolecular forces and boiling point?

Back

Stronger intermolecular forces result in higher boiling points.

Front

What type of intermolecular force is present in HCl?

Back

Dipole-dipole interactions.

Front

What is the primary reason for the difference in state (gas vs liquid) between propane and bromine?

Back

The strength of intermolecular forces.

Front

Which molecule has the strongest intermolecular forces: CH4, C2H6, or C3H8?

Back

C3H8.