CHEMISTRY QUIZ Thurs

Question 1

Endothermic phase change (definition)

Answer 1

Heat goes in (absorbed)

Question 2

Exothermic phase change definition

Answer 2

Heat goes out (released)

Question 3

Endothermic changes examples

Answer 3

-Vaporize (L to G)
-Melting (S to L)
-Sublimation (S to G)

Question 4

Exothermic changes examples

Answer 4

-Freezing (L to S)
-Condensation (G to L)
-Deposition (G to S)

Question 5

Potential energy is also known as..

Answer 5

stored energy

Question 6

Kinetic energy is also known as…

Answer 6

energy of motion

Question 7

Temperature

Answer 7

-The measurement of average kinetic energy

Question 8

Absolute zero

Answer 8

-O degrees Kelvin
-At which there is no motion

Question 9

Thermal energy

Answer 9

-Measurement of TOTAL kinetic energy

Question 10

K equals…

Answer 10

Celcius + 273

Question 11

Heat

Answer 11

The movement of kinetic energy
-Always travels high to low/hot to cold

Question 12

The Law of Conservation of Energy

Answer 12

Energy cannot be created or destroyed, only passed around

(q lost = q gained)

Question 13

Specific heat

Answer 13

Amount of energy needed to heat 1g of a substance by 1 degrees celsius

Question 14

Heat of vaporization

Answer 14

The amount of energy needed to turn 1g of liquid into gas

OR

1g of gas into liquid at the boiling point