Exploring Phase Changes and Heat of Fusion/Vaporization

What is the term used to describe the energy required to change a substance from solid to liquid?

• Heat of vaporization

• Heat of fusion

• Heat of condensation

• Heat of solidification

Tags

NGSS.MS-PS1-4

Which process is characterized by the system gaining heat?

• Freezing

• Exothermic

• Endothermic

• Condensation

Tags

NGSS.MS-PS1-4

What is the heat of fusion for water in joules per gram?

• 2260 J/g

• 334 J/g

• 100 J/g

• 500 J/g

What is the term for the energy required to change a liquid to a solid?

• Heat of fusion

• Heat of solidification

• Heat of condensation

• Heat of vaporization

Tags

NGSS.MS-PS3-4

At what temperature does water boil?

• 100 degrees Celsius

• 150 degrees Celsius

• 50 degrees Celsius

• 0 degrees Celsius

Tags

NGSS.MS-PS1-4

What is the heat of vaporization for water in joules per gram?

• 334 J/g

• 2260 J/g

• 100 J/g

• 500 J/g

Tags

NGSS.HS-PS3-1

What happens to the temperature of water during the phase change from liquid to gas?

• It fluctuates

• It increases

• It decreases

• It remains constant

Tags

NGSS.MS-PS1-4

Which equation is used to calculate the energy change when heating a substance without a phase change?

• Q = mL

• Q = mCΔT

• Q = mHf

• Q = mHv

Tags

NGSS.MS-PS3-4

What specific heat value should be used when calculating the energy change for heating liquid water?

• Specific heat of ice

• Specific heat of steam

• Specific heat of liquid water

• Specific heat of fusion

Tags

NGSS.HS-PS3-1

If you start with solid ice and heat it to 30 degrees Celsius, which sections of the energy calculation process would you use?

• C and D

• A, B, and C

• B and C

• A and B

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4