Phase Changes & Phase Diagrams

Phase Changes & Phase Diagrams

EQ 1. What do phase changes depend on in Chemistry?

EQ 2. How do phase diagrams help us differentiate between solids, liquids?

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H.C.4A.2 Analyze and interpret heating curve graphs to explain that changes from one state of matter to another are energy dependent.

Multiple Choice

What is the name of Al₂O₃

• aluminum oxide

• dialuminum trioxide

• aluminum III oxide

Multiple Choice

What is the name of the compound P₄S₁₀

• phosphorous sulfide

• tetraphosphide decasulfate

• phosphorous decasulfate

• tetraphosphorous decasulfide

Multiple Choice

What is the correct name for CF₄

• Carbon fluoride

• Carbon IV fluoride

• Carbon tetrafluoride

Open Ended

How was your weekend? What's your good thing for today?

Multiple Choice

Which of the following is not a phase change?

• Vaporization

• Sublimation

• Melting

• Effusion

Multiple Choice

The change of a substance from a solid to a gas is

called?

• Vaporization

• Sublimation

• Melting

• Effusion

Multiple Choice

Which of the following is an endothermic process?

• Condensation

• Deposition

• Melting

• Freezing

Multiple Choice

For a given substance, the temperature and pressure at

which liquid and gas phases are indistinguishable is

called

• The vapor point

• The triple point

• The critical point

• The danger zone

Multiple Choice

The temperature and pressure at which a substance can

simultaneously melt, evaporate, and sublime is called

• The vapor point

• The triple point

• The critical point

• The danger zone

Multiple Choice

At which temperature and pressure can the substance

below simultaneously melt, sublime, and evaporate?

• -10 C, 1 atm

• 140 C, 1 atm

• -10 C, 0.5 atm

• -110 C, 0.4 atm

Multiple Choice

For the substance below, X represents which phase?

• solid

• liquid

• vapor

• plasma

Multiple Choice

For the substance below, Y represents which phase?

• solid

• liquid

• vapor

• plasma

Multiple Choice

For the substance below, Z represents which phase?

• solid

• liquid

• vapor

• plasma

Multiple Choice

At standard atmospheric pressure (1 atm), at what

temperature will the substance below melt?

• -20 C

• -15 C

• -10 C

• 0 C

Multiple Choice

At 0.5 atm and -15 C the substance will

• remain solid

• melt

• sublime

• super cool