Unit 2 Motion and Particle speed

Front

What happens to the movement of molecules when the temperature is raised?

Back

Molecules move faster.

Front

What is the term for the change of one state of matter to another?

Back

Phase Change.

Front

What is the process called when a solid transitions to a liquid?

Back

Melting.

Front

If two balloons are compared, how can you determine which one was placed in a freezer?

Back

The balloon that is colder and possibly smaller due to contraction is the one placed in the freezer.

Front

Which compound is known to have the strongest intermolecular forces (IMF)?

Back

Water (HOH) has strong hydrogen bonding, making it have strong IMF.

Front

What is the definition of kinetic energy in the context of molecular motion?

Back

Kinetic energy is the energy of motion, which increases as the speed of molecules increases.

Front

What is the relationship between temperature and kinetic energy of molecules?

Back

As temperature increases, the average kinetic energy of the molecules also increases.

Front

What is the process called when a liquid turns into a gas?

Back

Vaporization.

Front

What is the term for the process of a gas turning into a liquid?

Back

Condensation.

Front

What is sublimation in terms of phase changes?

Back

Sublimation is the transition of a substance from solid to gas without passing through the liquid state.