evaporation and condensation

What happens to the particles' energy when a liquid is heated?

• It decreases

• It remains the same

• It increases

• It changes from vibrational to rotational

What happens when enough energy is gained to break the attractive forces between particles?

• The liquid turns into a solid.

• The liquid turns into a gas.

• The gas turns into a liquid.

• The gas turns into a solid.

What is the temperature at which the attractive forces break known as?

• Melting point

• Freezing point

• Boiling point

• Condensation point

What factors determine the strength of intermolecular forces?

• Type, size, and weight of molecules

• Temperature and pressure

• Color and texture of molecules

• Shape and volume of molecules

How do intermolecular forces predict differences in boiling points?

• Based on color

• Based on taste

• Based on strength

• Based on shape

How do stronger intermolecular forces affect boiling points?

• Decrease boiling points

• No effect on boiling points

• Increase boiling points

• Lead to freezing points

What happens to intramolecular covalent bonds holding a molecule together?

• They break

• They become stronger

• They become weaker

• They do not break

What happens to intermolecular hydrogen bonds in water during boiling?

• They are strengthened

• They are unaffected

• They are broken

• They are formed

Why don't most particles below the boiling point have enough energy to escape into the gaseous state?

• Due to the attractive forces between particles

• Because they are too heavy

• As a result of high pressure

• As a result of low temperature

Does a liquid have to be boiling for some vaporization to occur?

• Yes

• No

• Maybe

• Not sure