
P vs n and P vs V Analysis
Presentation
•
Chemistry
•
9th - 12th Grade
•
Easy
Courtney Canipe
Used 8+ times
FREE Resource
13 Slides • 10 Questions
1
As you go through the Quizziz:
Copy down any important information in your notebook!
Hint: Any information about the graphs we got from our labs = important
2
Multiple Choice
When we dissolved the alka seltzer tablet, what type of particle was being released in our flask, increasing our number of particles?
water
carbon dioxide gas
sodium
vinegar
3
Multiple Select
After a certain point in time your graph displayed a flat line. What was happening? Why did it flatten out? Does the # of particles change at this point?
The data was no longer recording
The pressure remained constant
The number of particles didn't change
Gas was being released from the flask
4
Multiple Choice
As the number of gas particles increases pressure increases because
particles collide with each other more
particles collide with the walls of the container more
particles speed up
particles heat up
5
Multiple Choice
Does pressure vs number of particles represent a direct or indirect relationship?
direct
indirect
6
Multiple Choice
Because this is a direct relationship, as the number of gas particles increases, pressure __________.
increases
decreases
7
Multiple Choice
The relationship between number of gas particles and pressure is direct. So if I double the pressure, what happens to the number of particles?
It doubles
It halves
Cannot be determined
8
Check your data. Is this true for your data?
If we double the pressure, the number of particles also doubles. This is because P ∝ n.
9
Draw particle diagrams for
1, 2 and 3
On a whiteboard with a partner
10
Draw this in your notebook!
Particle diagrams of Pressurve vs n
11
The speed of the particles and volume of the container remained constant during this experiment!
Notice that the ONLY thing that changes from diagram 1-3 is the number of particles!
12
Open Ended
In our pressure vs volume experiment, how did we change the volume of the gas?
13
In the pressure vs volume experiment we changed volume by moving the piston in the syringe
14
Sketch the curve for P vs V
On a whiteboard with a partner
15
Draw particle diagrams for 1, 2 and 3
On a whiteboard with a partner
16
Draw this in your notebook!
Particle diagrams of Pressure vs Volume
17
The number of particles and speed of the particles remained constant during this experiment!
Notice the ONLY thing that changes from diagram 1 to 3 is the size of the container
18
Multiple Choice
Which is a constant for your pressure vs volume experiment?
P x V = constant or P / V = constant
P x V
P / V
19
We can say for our pressure vs volume experiment P x V = 1100 kPa ⋅ mL
So, does this mean pressure vs volume represents a direct or indirect relationship?
Some text here about the topic of discussion
20
Pressure vs Volume is an indirect relationship!
This means P ∝ 1/V
Some text here about the topic of discussion
21
As volume increases, pressure decreases
22
Multiple Choice
A syringe set to a volume of 8.0mL is compressed to 4.0mL. Will the pressure go up or down?
Pressure goes up
Pressure goes down
23
Multiple Choice
A syringe set to a volume of 8.0mL is expanded to 12.0mL. Will the pressure go up or down?
Pressure goes up
Pressure goes down
As you go through the Quizziz:
Copy down any important information in your notebook!
Hint: Any information about the graphs we got from our labs = important
Show answer
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