Thermodynamics

Temperature is a measure of the...

• total energy in a substance
• total kinetic energy in a substance
• average potential energy in a substance
• average kinetic energy of molecules in a substance

A substance with a high specific heat:

• Is always extremely hot.
• Requires a lot of energy to become hot.
• Is not heavy.
• Does not requires a lot of energy to become hot.

Thermal energy always moves:

• From a high temperature object to a lower temperature object.
• From a lower temperature object to a higher temperature object.
• From an object with lower kinetic energy to an object with higher kinetic energy.
• From an object of higher mass to an object of lower mass.

Exothermic reactions...

• Absorb energy
• Release energy
• Release Color
• Absorb Color

In an endothermic reaction, heat is ,,,

• taken in
• given out

Specific Heat

• the amount of energy it takes to raise one gram of a substance by one degree Celsius

• The internal energy of an object

• The measure of the kinetic energy of an object's molecules

• the amount of energy it takes to change the state of 1g of a substance

Celsius Scale

• water freezes at 0 degrees and boils at 100 degrees

• water boils at 212 degrees and freezes at 32 degrees

• Water boils at 273 degrees and boils at 373 degrees

Thermal energy always travels from ______ temperatures to ______ temperatures.

• Higher / Lower

• Lower / Higher

• Higher / Higher

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