Page 14 - Teacher Preview Copy
P. 14
Worksheet 2 . Topic 1
Set B: Phases of matter and temperature: Objective: To test you knowledge of facts related to phases,
phase changes, energy and temperature.
Answer the following questions.
19. Which phase of matter have particles that are arranged in regular geometric?
20. In which phase of water can the molecules of water flow over each other?
21. How would you compare the forces of attraction between particles of a substance in the liquid
phase to those in the gas phases?
22. Which three phase changes are endothermic?
23. Which three phase changes are exothermic?
24. How many reference temperature points are needed to create a thermometer scale?
25. Which temperatures are commonly used as reference points to create Celsius or Kelvin thermometer?
26. How is the average kinetic energy of particles relates to temperature of a substance?
Set C: Relating phase change to energy Objective: To test your ability to relate phase changes of
matter to energy
Above each arrow write the phase change (fusion, condensation...etc) that is represented by the equation.
Under each arrow, write “exothermic” or “endothermic” to indicate if the change releases or absorbs heat.
27. Au(l) ------------------------------- > Au(s) 29. NaCl(s) -------------------------------- > NaCl(l)
28. C10H8(s) --------------------------- > C10H8(g) 30. C2H3O2 (g) ---------------------------- > C2H3O2(l)
Set D: Temperature Objective: To test your understanding of temperature and kinetic energy.
Write “Highest KE” under the container or object that has particles with highest kinetic energy.
Write “Lowest KE” under the container or object that has particles with lowest kinetic energy.
31. 32. 300K o
15 C o 5 C o 250K 50 C 40 C
o
o
o
10 C 25 C
Convert the given temperatures to Kelvin. Convert the given temperatures to Celsius.
o
33. -15 C 36. 27 K
o
34. 30 C 37. 125 K
o
35. 120 C 38. 325 K
4 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Set B: Phases of matter and temperature: Objective: To test you knowledge of facts related to phases,
phase changes, energy and temperature.
Answer the following questions.
19. Which phase of matter have particles that are arranged in regular geometric?
20. In which phase of water can the molecules of water flow over each other?
21. How would you compare the forces of attraction between particles of a substance in the liquid
phase to those in the gas phases?
22. Which three phase changes are endothermic?
23. Which three phase changes are exothermic?
24. How many reference temperature points are needed to create a thermometer scale?
25. Which temperatures are commonly used as reference points to create Celsius or Kelvin thermometer?
26. How is the average kinetic energy of particles relates to temperature of a substance?
Set C: Relating phase change to energy Objective: To test your ability to relate phase changes of
matter to energy
Above each arrow write the phase change (fusion, condensation...etc) that is represented by the equation.
Under each arrow, write “exothermic” or “endothermic” to indicate if the change releases or absorbs heat.
27. Au(l) ------------------------------- > Au(s) 29. NaCl(s) -------------------------------- > NaCl(l)
28. C10H8(s) --------------------------- > C10H8(g) 30. C2H3O2 (g) ---------------------------- > C2H3O2(l)
Set D: Temperature Objective: To test your understanding of temperature and kinetic energy.
Write “Highest KE” under the container or object that has particles with highest kinetic energy.
Write “Lowest KE” under the container or object that has particles with lowest kinetic energy.
31. 32. 300K o
15 C o 5 C o 250K 50 C 40 C
o
o
o
10 C 25 C
Convert the given temperatures to Kelvin. Convert the given temperatures to Celsius.
o
33. -15 C 36. 27 K
o
34. 30 C 37. 125 K
o
35. 120 C 38. 325 K
4 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
