Heat of Fusion and Vaporization

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down

• They would stop moving

• They would speed up

• There would be no effect

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The _______ of a substance is the temperature at which a solid begins to liquefy.

• heat of vaporization

• heat of fusion

• boiling point

• melting point

Tags

NGSS.MS-PS1-4

The amount of energy needed to change a substance from the solid phase to the liquid phase is the substance's

• melting point.

• heat of fusion.

• heat of vaporization.

• heat of transformation.

Tags

NGSS.MS-PS1-4

The energy required to change a liquid at its boiling point to a gas is

• heat of vaporization.

• heat of fusion.

• boiling point.

• heat of sublimation.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A change in which energy is absorbed, such as ice melting, is an

• exothermic change.

• endothermic change.

• kinetic change.

• mechanical change.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Substances can change in state when heated. When a solid turns into a liquid, this is called ?

• Fusion

• Vaporization

• Sublimation

• Condensation

Tags

NGSS.MS-PS1-4

Substances can change in state when heated. When a liquid turns into a gas, this is called ?

• Fusion

• Vaporization

• Sublimation

• Condensation

Tags

NGSS.MS-PS1-4

Which of the following processes involves the heat of fusion?

• Melting ice into water

• Boiling water into steam

• Condensing steam into water

• Subliming dry ice into gas

Tags

NGSS.MS-PS1-4

What is the heat of vaporization?

• The energy required to melt a solid

• The energy required to boil a liquid

• The energy required to freeze a liquid

• The energy required to condense a gas

Tags

NGSS.MS-PS1-4

During which phase change is the heat of fusion absorbed?

• Liquid to gas

• Solid to liquid

• Gas to liquid

• Liquid to solid

Tags

NGSS.MS-PS1-4