Food Science Ch 5 Energy

Liquid phase?

• A

• B

• C

• D

Point where condensation begins.

• D

• E

• F

• G

Point where melting begins.

• A

• B

• C

• D

Gaseous phase.

• D

• E

• F

• G

Point where boiling begins.

• D

• E

• F

• G

Solid phase.

• A

• B

• C

• D

Point where freezing begins.

• A

• B

• C

• D

Microwaves cause certain molecules to vibrate rapidly. Microwaves have the greatest effect on _______.

• fats

• proteins

• water

Temperature is _____.

• another term for heat

• measure of molecular motion

• the measure of the average potential energy

• All of the above.

Higher temperatures increase the rate of reactions because _____.

• both conduction and convection are used

• less energy is absorbed

• more molecules collide faster