Download Quiz Review Name Period 1. What is the equation that

Quiz Review
Name
Period
1. What is the equation that represent the Law of Conservation of Energy?
2. What is the definition of kinetic energy?
3. What is the definition of potential energy?
4. Where do you find the potential energy in a chemical?
5. Average kinetic energy is measured as
.
6. As the kinetic energy increase, the temperature increase / decrease.
7. What are the difference in conduction, convection, and radiation? How does the heat
transfer?
8. Draw a picture representing conduction, convection, and radiation on the fire.
9. Endothermic releases / absorbs heat.
10. When two chemicals mix their temperature rises, the reaction is endothermic /
exothermic.
11. When calculating heat if heat is negative, the reaction is endothermic /
exothermic.
12. Identify the name of the phase change.
a. Br2 (l)  Br2 (s)
b. NH3 (l)  NH3 (g)
c. H2O (s)  H2O (l)
d. I2 (s)  I2 (g)
e. H2O (g)  H2O (l)
f. CO2 (g)  CO2 (s)
13. Which phase change results in release of energy?
a. Br2 (l)  Br2 (s)
b. I2 (s)  I2 (g)
c. H2O (s)  H2O (l)
d. NH3 (l)  NH3 (g)
14. When a substance melts, the energy is being released / absorbed.
15. When a substance condenses, the particles starts to slow down / speed up.
16. When a substance undergoes sublimation, it gets pulled together / separated.
17. Which of the following substance will have the lowest temperature after an hour of
being in the sun?
Water (4.184 J/goC)
Granite (0.803 J/goC)
Lead (0.129 J/goC)
18. Which of the following substance would need a shorter time to increase the
temperature by one degree?
Water (4.184 J/goC)
Granite (0.803 J/goC)
Lead (0.129 J/goC)
19. What is the amount of heat absorbed by 25.0 g of water when the temperature of
the water increased from 24oC to 36oC? (the specific heat of water is 4.18 J/goC)
This is an endothermic / exothermic reaction.
20. A 10.0 gram sample of aluminum at 23oC absorbs 209 J of heat. What is the final
temperature? (the specific heat of aluminum is 0.902 J/goC)
This is an endothermic / exothermic reaction.
21. Find the mass of ethanol when 9675 J of heat is applied, causing a 51oC increase in
temperature. (the specific heat of ethanol is 2.44 J/goC)
This is an endothermic / exothermic reaction.
22. Find the specific heat of an unknown metal when 9675 J of heat is released from
15.5 g sample, causing the temperature to change from 89oC to 51oC.
This is an endothermic / exothermic reaction.