Review U1.6&U1.7 Kinetic Molecular Theory and Heating Curves

Open Ended

How do the particles of matter behave in different phases?

Open Ended

What is happening to the water in the image, and is it changing into a new substance? What is happening to the particles you can't see?

Open Ended

What are the key characteristics of atoms and molecules in gases, liquids, and solids?

Multiple Choice

Which phase of matter has the least spacing between particles, the most potential for movement, and does not have a definite shape yet the particles will not fill the container?

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

Temperature is a measure of ____ of the particles in an object.

• the difference between the potential energy and kinetic energy

• the sum of the potential energy and kinetic energy

• the average potential energy

• the average kinetic energy

Multiple Choice

When a substance is heated, the particles gain energy and move apart, increasing the volume. The mass of the substance being heated _______.

• increases

• decreases

• stays the same

• varies unpredictably

Multiple Choice

When temperature increases, average _____ increases.

• potential energy

• kinetic energy

• gravitational potential energy

• chemical energy

Open Ended

How do intermolecular forces and thermal energy together determine the properties of solids, liquids, and gases?

Multiple Choice

Which state of matter has particles that are closely packed and rigid due to strong intermolecular forces?

• Solid

• Liquid

• Gas

• Plasma

Multiple Select

Which phase changes involve the release of heat to the surroundings? Select all that apply.

• Freezing

• Vaporization

• Condensation

• Sublimation

Multiple Choice

Which of the following phase changes is classified as endothermic?

• Freezing

• Condensation

• Melting

• Deposition

Open Ended

Describe the relationship between intermolecular forces and kinetic energy during the phase change from solid to liquid.

Open Ended

What energy changes are happening when a candle melts, and how do you know?

Multiple Choice

In the heating curve diagram, what phase change occurs at the flat portion labeled 'B'?

• Melting

• Boiling

• Condensation

• Freezing

Multiple Choice

Based on the heating and cooling curve diagram, at which labeled section does the substance undergo a phase change from liquid to gas?

• Section F

• Section I

• Section K

• Section D

Open Ended

How does a heating or cooling curve show what’s happening to particles during phase changes?