Understanding Kinetic Molecular Theory

What are the tiny particles that make up all matter called?

• Molecules

• Electrons

• Cells

• Atoms

What is the diameter of molecules in meters?

• 1e-9 to 1e-7 meters

• 1e-10 to 1e-8 meters

• 1e-6 to 1e-4 meters

• 1e-12 to 1e-11 meters

What type of energy do molecules possess due to their motion?

• Kinetic energy

• Chemical energy

• Potential energy

• Thermal energy

What type of energy is associated with the attractive forces between molecules?

• Potential energy

• Kinetic energy

• Thermal energy

• Nuclear energy

What is the term for the small distances between molecules?

• molecular gaps

• atomic spaces

• intermolecular spaces

• interatomic distances

What is the shape and volume of solids?

• Solids have a fixed shape and volume that cannot change.

• The volume of solids is always equal to their surface area.

• The shape of solids varies (e.g., cubes, spheres); their volume is calculated using specific formulas based on the shape.

• All solids are shaped like pyramids and have the same volume.

How are the molecules in solids arranged?

• The molecules in solids are arranged in a fixed, orderly pattern.

• The molecules in solids are arranged in a circular pattern.

• The molecules in solids are loosely packed and move freely.

• The molecules in solids are randomly arranged.

What type of motion do molecules in solids exhibit?

• No motion at all

• Vibrational motion around fixed positions

• Rotational motion around a central axis

• Translational motion in random directions

What is the shape and volume of liquids?

• Liquids have no fixed shape and take the shape of their container; their volume is constant.

• Liquids have a defined shape but variable volume.

• Liquids can only exist in solid containers.

• Liquids have a fixed shape and volume that changes with temperature.

How does the intermolecular distance in liquids compare to that in solids?

• The intermolecular distance in liquids is equal to that in solids.

• The intermolecular distance in liquids is greater than in solids.

• The intermolecular distance in liquids is less than in solids.

• The intermolecular distance in liquids is significantly smaller than in solids.