Chem 2 Homework Week 7: Day 34

What line segment represents only the solid state?

• A-B
• B-C
• C-D
• D-E

Which segment represents the heat of fusion?

• A-B
• B-C
• C-D
• D-E

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

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

Between which points is the temperature of the substance remaining constant?

• A-B only. 
• A-B, C-D, E-F
• B-C only. 
• B-C, D-E

During a phase change what happens to temperature?

• it increases
• it decreases
• depends; if being heated it increases, if being cooled it decreases
• stays constant

All changes in the state of matter of a substance requires a change in 

• mass
• temperature
• permission
• energy

What state of matter is X?

• solid 
• liquid
• gas
• supercritical fluid

What state of matter is Y?

• solid 
• liquid
• gas
• supercritical fluid

What state of matter is Z?

• solid 
• liquid
• gas
• supercritical fluid

What change occurs from E to C?

• sublimation
• freezing
• melting
• boiling