Heating Curve & Phase Diagrams Review

What explains the very high melting and boiling point of water

• Strong dipole-dipole bonds between water molecules
• Strong hydrogen bonds between water molecules
• Dispersion forces which are present in all molecules
• Asymmetrical shape of the polar bonds.

What line segment represents only the solid state?

• A-B
• B-C
• C-D
• D-E

Tags

NGSS.MS-PS1-4

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

Tags

NGSS.HS-PS3-4

Between which points is the temperature of the substance increasing?

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

Tags

NGSS.HS-PS3-4

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

• 100 C
• 60 C
• 80 C
• 20 C

Between which two points is Heat of Vaporization?

• A <----> B

• B <----> C

• C <----> D

• D <----> E

• E <----> F

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-1

NGSS.HS-PS3-2

What state of matter is X?

• solid 
• liquid
• gas
• supercritical fluid

Tags

NGSS.HS-PS3-4

What state of matter is Y?

• solid 
• liquid
• gas
• supercritical fluid

Tags

NGSS.HS-PS3-4

What is the normal boiling point of this substance?

• 150 °C
• 100 °C
• -50 °C
• 0 °C

Tags

NGSS.HS-PS3-4

What change occurs from C to D?

• condensation
• vaporization
• melting
• sublimation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5