Gases Chemistry Worksheet - Chapter 13, An Introduction To Chemistry Page 8
ADVERTISEMENT
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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49490
Chapter 13
Gases
The Relationship Between Number of Gas Particles and Pressure
O
10
To explore the relationship between gas pressure and the number of gas particles, we
bjeCtive
d
could set up our experimental system as shown in Figure 13.6. The volume is held
constant by locking the piston so it cannot move. The temperature is kept constant by
allowing heat to flow in or out of the cylinder in order to keep the temperature of the
gas in the cylinder equal to the external temperature. When the number of gas particles
is increased by adding gas through the valve on the left of the cylinder, the pressure
gauge shows an increase in pressure. When gas is allowed to escape from the valve, the
decrease in the number of gas particles causes a decrease in the pressure of the gas.
Increased number of gas particles → Increased pressure
O
10
bjeCtive
d
Decreased number of gas particles → Decreased pressure
The increase in the number of gas particles in the container leads to an increase in the
number of collisions with the walls per unit time. This leads to an increase in the force
per unit area–that is, to an increase in gas pressure.
If the temperature and the volume of an ideal gas are held constant, the number of
gas particles in a container and the gas pressure are directly proportional.
O
10
P ∝ n if T and V are constant
bjeCtive
d
Figure 13.6
Relationship Between Number of Gas Particles and Pressure
Increased number of gas particles leads to increased pressure if the temperature and volume are constant.
Piston locked
Constant
in position
volume
O
10
bjeCtive
d
Gas added
Constant
temperature
You can see an
Increased
animation that
pressure
demonstrates
this relationship
at the textbook’s
Increased number of gas particles
Web site.
Increased number of collisions with the walls
Increased total force of collisions
Increased gas pressure
ADVERTISEMENT
0 votes
Related Articles
Related forms
Lines Worksheet - Chapter 1 An Introduction To Graphs And Lines, Math 1310 College Algebra, University Of Houston
Education
Chapter 2 An Introduction To Chemistry - The Structure Of Matter And The Chemical Elements Worksheet
Education
Notice, Chapter 13 Plan, Motions To Value Security, Avoid Judicial Lien, Avoid A Nonpurchase-money, Nonpossessory Security Interest And Lien, And/or To Assume Or Reject An Executory Contract/unexpired Lease
Legal
Order Dismissing Chapter 13 Case Prior To Confirmation Of Plan - United States Bankruptcy Judge
Financial
Related Categories
Parent category: Education