Human Molecular Motion Lab

Data Table 14-2 / Human Molecular Motion Lab Data
Chemistry Concept / Trial #
1 / 2 / 3 / 4
Pressure / Normal
Volume / Full Space / ½ Space / Full Space / Full Space
Temperature / Normal
(Slow Speed) / Normal
(Slow Speed) / Double / Normal
(Slow Speed)
# of Molecules / Normal
(Full Class) / Normal
(Full Class) / Normal
(Full Class) / Less
(½ Class)
Student # / # of Collisions / # of Collisions / # of Collisions / # of Collisions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Average

Analysis Questions:

  1. What does each student represent in this lab?
  2. What does the speed you are walking represent in this lab?
  3. What does the amount of space you have to walk in represent in this lab?
  4. What does each collision with another student or boundary represent in this lab?

5.  What things were the same between Trial 1 and Trial 2?

6.  How were things different between Trial 1 and Trial 2?

7.  What things were the same between Trial 1 and Trial 3?

8.  How were things different between Trial 1 and Trial 3?

9.  What things were the same between Trial 1 and Trial 4?

10.  How were things different between Trial 1 and Trial 4?

11.  What things were the same between Trial 2 and Trial 3?

12.  How were things different between Trial 2 and Trial 3?

  1. In this lab after every collision your new direction was random and your pace was kept constant. Would this really be true for gas molecules hitting each other? Explain why you think so. (Hint: Think of what would happen if large pool balls hit small pool balls)

Conclusion Questions: (Each answer should be phrased “The pressure in Trial (#) is about……..” After each answer please elaborate by explaining if the answer makes sense to you and why.)

  1. In general, How does the Pressure in Trial 1 compare to the Pressure of Trial 2?
  2. In general, How does the Pressure of Trial 1 compare to the Pressure of Trial 3?
  3. In general, How does the Pressure of Trial 1 compare to the Pressure of Trial 4?
  4. In general, How does the Pressure of Trial 2 compare to the Pressure of Trial 3?