Gas Law SimulationV2 - Tagged
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Feb 20, 2024
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Gas Law Simulation
Name: ________________________________
Get Started: Go to Gas Law simulation lab
.
Part I
1.
Click on Intro. Choose only one type of particle (Heavy or Light).
2.
Give one pump of gas and observe the behavior. How would you describe this?
Record the pressure and temperature.
3.
Hold volume and temperature constant and give one more pump. Record the number of particles and the pressure in the data table below. Describe what you saw.
Repeat this a few times, either increasing or decreasing the number of the same type of particles.
Number of particles
Pressure (atm)
4.
Is there a relationship between the number of particles and the pressure? Briefly describe this.
Gas Law Simulation
Name: ________________________________
Part II. There are four gas variables that are used to describe the behavior of gases: pressure, volume, temperature, and number of moles/particles. These four variables are in a delicate balance and if one of the variables is changed, one or more of the variables may change to relieve the stress on the gas system. This activity is designed to look at what happens when you change three of the four variables. We will keep the number of particles constant in each “experiment” and in addition, each experiment will hold an additional variable constant. Get Started
Choose the Laws option on the bottom of your screen.
Experiment 1- Constant volume
5.
Give one pump of gas into the chamber. See picture.
6.
Choose to hold the volume constant by selecting that option in the upper right hand corner. What is the initial temperature (in K) and pressure (in atm) in the chamber?
7.
Use the slider at the bottom of the simulator to add heat and double the temperature. Did the pressure go up or go down? What is the new pressure in the chamber?
Experiment 2 - Constant Temperature
8.
Reset the simulator by selecting the reset button in the bottom right corner of the simulation. 9.
Give one pump of gas into the chamber.
10.Choose to hold the temperature constant by selecting that option in the upper right-hand corner. What is the initial pressure (in atm) in the chamber?
11.Locate the handle on the left of the chamber and slide it to the right as far as it will go.
Does the volume go up or go down when you slide it to the right? Did the pressure go up or go down?
Gas Law Simulation
Name: ________________________________
12.Slide the handle all the way to the left as far as it will go. Did the pressure go up or go down?
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Gas Law Simulation
Name: ________________________________
Experiment 3 - Constant Pressure
13.Reset the simulator by selecting the reset button in the bottom right corner of the simulation. 14.Give one pump of gas into the chamber.
15.Choose to hold the pressure constant (with variable volume) by selecting that option in the upper right-hand corner. See the picture.
What is the initial temperature (in K) in the chamber?
16.Use the slider at the bottom of the simulator to add heat and increase the temperature. Did the volume go up or go down? Analysis
In each of the experiments, you hold one variable constant while changing the other two. Summarize the findings of your experiments by using arrows (
or
) to represent what happened. Give a ‘real world’ example for each and explain how the gas law behavior is observed..
Experiment 1: When temperature went ________, the pressure went _________.
Real world example:
Experiment 2: When volume went ________, the pressure went _________.
Real world example:
Experiment 3: When temperature went ________, the volume went _________.
Real world example:
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Figure 1
Figure 2
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2.
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Evaluation of the Gas Law Constant
PROCEDURE
1) Get a piece of magnesium ribbon that has a mass between 0.0300-0.0400g. Clean thoroughly with emery cloth. After cleaning, do not handle the ribbon with your hands.
2) Obtain an eudiometer and rinse thoroughly with water ifit is not clean and dry.
3) Fill one liter beaker half full of tap water.
4) Empty the eudiometer oiny water remaining. Fill it to the 25.0mL mark with the 3.0 M hydrochloric acid. Caution: Hydrochloric acid is very caustic. Wear goggles at all times. Fill the eudiometer to the top with distilled water. Make a "v" out of the piece of magnesium ribbon and wedge it into the eudiometer in the distilled water.
5) Put your finger over the top of the eudiometer and quickly invert it and put the top into the beaker of water. Remove your finger.
6) After the ribbon has completely reacted, record the volume of the gas in the eudiometer.
7) Repeat as time permits.
DATA
Barometric Pressure
768 torr
Vapor Pressure…
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Please refer to photo! Thanks!
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(References]
Use the References to access important values if needed for this question.
A helium-filled weather balloon has a volume of 886 L at 22.9°C and 751 mmHg. It is released and rises to an altitude of 7.98 km, where the pressure is 319 mmHg and the temperature is -30.1°C.
The volume of the balloon at this altitude is
L.
Submit Answer
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Cengage Learning | Cengage Technical Support
DELL
...
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your activity notebook.
the following statements about these gas samples is true?
* The volume of the carbon dioxide container is the same as the volume of the
nitrogen container.
D. The number of molecules in the carbon dioxide container is greater than the
number of molecules in the nitrogen container.
i density of the carbon dioxide sample is the same as that of the nitrogen sample
* average kinetic energy of the carbon dioxide molecules is greater than
the average kinetic energy of the nitrogen molecules.
2. A real gas would act most ideal at
a. 1 atm and 273 K
b. 10 atm and 547 K
c. 10 atm and 273 K
d. 0.5 atm and 546 K
3. 15. A given mass of gas in a rigid container is heated from 100 "C to 300 "C.
Which of the following best describes what will happen to the pressure of the
gas? The pressure will
a. decrease by a factor of three
b. increase by a factor of three.
c. increase by a factor less than three.
d. decrease by a factor greater than three.
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[References]
Use the References to access important values if needed for this question.
1.37 mol sample of argon gas at a temperature of 14.0 °C is found to occupy a volume of 28.2 liters. The pressure of this gas sample is
mm Hg.
Submit Answer
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3 item attempts remaining
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- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
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