Phase Change Quiz 8A

5. What is it called when a solid turns directly into a gas?

• Sublimation
• Condensation
• Liquid

The phase change from water vapor to liquid water is known as...

• evaporation
• precipitation
• condensation
• sublimation

What best describes the macro and molecular scale appearance of a Liquid?

• Rigid, Keeps its shape, locked together and only move in place

• Fills the container and has no visible shape, free to move around and fly apart

• Flows and takes shape of its container, can move and flow around eachother

What best describes the macro and molecular scale appearance of a Gas?

• Rigid, Keeps its shape, locked together and only move in place

• Fills the container and has no visible shape, free to move around and fly apart

• Flows and takes shape of its container, can move and flow around eachother

What phase change does B represent?

• Freezing

• Solid

• Melting

• Liquid

When you transfer energy into a substance, the temperature ______________.

How much kinetic energy does diagram A have?

• most kinetic energy

• moderate kinetic energy

• least kinetic energy

• No kinetic energy

How would you describe the way molecules move when the molecules are solid?

• the molecules are moving in place.

• the molecules are moving around each other.

• the molecules are moving away from each other.

• the molecules are not moving

How would you describe the way molecules move when the molecules are liquid?

• the molecules are moving in place.

• the molecules are moving around each other.

• the molecules are moving away from each other.

• the molecules are not moving

What must happen for molecules to move slower?

• Kinetic energy is not changing. Temperature decreases.

• Kinetic energy and temperature depend on the molecules.

• Kinetic energy is decreasing and temperature is decreasing.

• Kinetic energy is decreasing and temperature is increasing.