Phase Changes Enthalpy

Change from liquid to gas is called....

• ionization

• evaporation

• condensation

• deposition

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The energy required to melt a solid at its melting point

• Heat of reaction

• Heat of formation

• Hess's Law of heat summation

• Heat of fusion

• Heat of solution

Tags

NGSS.MS-PS1-4

Heat content of a system

• Calorimeter

• Calorie

• Joule

• Enthalpy

• Specific heat

Tags

NGSS.MS-PS3-3

Which of these phase changes is an endothermic process?

• Condensation

• Evaporation

• Freezing

• All phase changes are endothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

a change from one state of matter to another without a change in chemical composition

• conduction

• thermodynamics

• convection

• phase change

Tags

NGSS.MS-PS1-4

the total heat content of a system

• enthalpy

• entropy

• temperature

• thermometer

Tags

NGSS.MS-PS3-4

Which phase change involves the absorption of heat?

• Melting

• Freezing

• Condensation

• Deposition

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the term for the heat required to change a liquid into a gas at constant temperature and pressure?

• Heat of fusion

• Heat of vaporization

• Heat of sublimation

• Heat of reaction

Tags

NGSS.MS-PS1-4

During which phase change does a substance release energy?

• Sublimation

• Vaporization

• Freezing

• Melting

Tags

NGSS.MS-PS1-4

What is the enthalpy change called when a solid turns directly into a gas?

• Heat of fusion

• Heat of vaporization

• Heat of sublimation

• Heat of condensation

Tags

NGSS.MS-PS1-4