Phase Changes
During Melting, temperature remains ___.
Constant
True or False: "As the temperature increases, particle motion becomes faster?"
True
In solids, particles ___ in fixed positions.
Vibrate.
Thermal Energy is related to the ___ of particles.
Motion.
During phase changes, potential energy between particles changes ___ with kinetic energy.
Strength.
In the process of ___, liquid changes to a solid.
Freezing.
Lower Temperatures cause particles to move ___.
Slower
True or False: "Liquids have weaker bonds between particles than solids".
True.
True or False: "When thermal energy increases, particles move slower"
False; Correct answer is faster
True or False: "Thermal expansion occurs because particles increase their average kinetic energy".
True
___ occurs when a gas changes directly to a solid.
When temperature rises, the space between particles usually ___.
Increases.
1. weak
2. freezing
True or False: "Temperature is a measure of average thermal energy".
False; Temperature is a measure of kinetic energy
Stronger intermolecular forces result in ___ phase change temperatures.
Higher
During boiling, bubbles form because particles gain enough energy to ___.
Gasify
True or False: "Temperature changes affect thermal energy"
False; correct answer is kinetic
True or False: "The strongest particle bonds are found in the liquid state".
More particle collisions indicate ___ thermal energy.
More.
As entropy increases, particles become more ___.
Disordered.