OL U4 Zone 2

The reverse process of sublimation is (a)   .

• Deposition
• Melting
• Freezing
• Vaporization

Tags

NGSS.MS-PS1-4

At the plateau of a heating curve, (a)   occurs.

• No change in temperature
• Increase in kinetic energy
• Decrease in potential energy
• Constant temperature and kinetic en

Match the following formulas with their correct application during a heating curve.

• Formula for gravitational potential energy

• q = mΔH

• Formula for kinetic energy

• q = mv^2

• Used during the slope of a heating curve

• q = mgh

• Used during the plateau of a heating curve

• q = mcΔT

Tags

NGSS.HS-PS3-2

The plateau at 100°C on a heating curve represents the (a)   of liquid water.

• Boiling of liquid water
• Melting of solid ice
• Freezing of water
• Condensation of vapor

Tags

NGSS.MS-PS1-4

What is the formula to calculate the heat energy needed for vaporization?

• q = m ΔH_fus

• q = m ΔH_vap

• q = m ΔH_cond

• q = m ΔH_sub

What does ΔH_fus represent in the formula q = m ΔH_fus?

• Heat of vaporization

• Heat of fusion

• Heat of condensation

• Heat of sublimation

What does ΔH_vap represent in the formula q = m ΔH_vap?

• Heat of fusion

• Heat of vaporization

• Heat of condensation

• Heat of sublimation

Tags

NGSS.HS-PS3-4

Place these labels in the appropriate spots.

a

c

b

liquid

boiling

melting

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What state(s) of matter are present at D-E?

• Solid-liquid
• Liquid
• Liquid-gas
• Gas-Solid

Tags

NGSS.MS-PS1-4

A substance's heating curve is shown in the graph.  What is its boiling point?

• 100 C
• 60 C
• 80 C
• 20 C

Tags

NGSS.MS-PS1-4