IDEAL GAS LAW

1
IDEAL GAS LAW
AOS 101 Section 301 9 February 2009
2
Boyle's Law
Charles's Law
IDEAL GAS LAW
Gay-Lussac's Law
3
Charles's Law

• When pressure is held constant

V
C

T
V Volume T Temperature C Constant
4
Charles's Law

• This is just a special case of the Ideal Gas Law
  with pressure held constant

P
?
R

T
P Pressure ? Density R Constant T
Temperature
5
Charles's Law

• This is just a special case of the Ideal Gas Law
  with pressure held constant

P
V
R

T
P Pressure ? Density R Constant T
Temperature
1
V

?
6
Charles's Law

• This is just a special case of the Ideal Gas Law
  with pressure held constant

V
R

P
T
P Pressure ? Density R Constant T
Temperature
1
V

?
7
Charles's Law

• This is just a special case of the Ideal Gas Law
  with pressure held constant

V
C

T
P Pressure ? Density R Constant T
Temperature
R
1
V

C

?
P
8
Charles's Law

• This is just a special case of the Ideal Gas Law
  with pressure held constant

V
C

T
P Pressure ? Density R Constant T
Temperature
R
1
V

C

?
P
9
My Birthday
10
My Birthday
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Boyle's Law

• When temperature is held constant

V
C

P
P Pressure V Volume C Constant
12
Boyle's Law

• This is just a special case of the Ideal Gas Law
  when temperature is held constant

P
?
R

T
P Pressure ? Density R Constant T
Temperature
13
Boyle's Law

• This is just a special case of the Ideal Gas Law
  when temperature is held constant

P
R

T
V
P Pressure V Volume R Constant T
Temperature
1
V

?
14
Boyle's Law

• This is just a special case of the Ideal Gas Law
  when temperature is held constant

P
C

V
P Pressure V Volume R Constant T
Temperature
1
V

C
T

R
?
15
Boyle's Law

• This is just a special case of the Ideal Gas Law
  when temperature is held constant

P
C

V
P Pressure V Volume R Constant T
Temperature
1
V

C
T

R
?
16
VACUUM OFF
Whipped Cream (Filled with air bubbles)
Sealed Container Connected to Vacuum
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VACUUM ON
As pressure goes down, the volume of the bubbles
must increase, and the whipped cream increases in
size
18
Gay-Lussac's Law

• When density is held constant

P
C

T
P Pressure T Temperature C Constant
19
Gay-Lussac's Law

• This is just a special case of the Ideal Gas Law
  when the density is held constant

P
?
R

T
P Pressure ? Density R Constant T
Temperature
20
Gay-Lussac's Law

• This is just a special case of the Ideal Gas Law
  when the density is held constant

P
?
R

T
P Pressure ? Density R Constant T
Temperature
21
Gay-Lussac's Law

• This is just a special case of the Ideal Gas Law
  when the density is held constant

P
C

T
P Pressure ? Density R Constant T
Temperature
R ? C
22
Gay-Lussac's Law

• This is just a special case of the Ideal Gas Law
  when the density is held constant

P
C

T
P Pressure ? Density R Constant T
Temperature
R ? C
23
CO2 canister at room temperature
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When CO2 is depleted from canister, the pressure
inside the tank has decreased, leading to a
decrease in temperature
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DO THE BAR-BET TRICK