Seminole State College Charles Law Temperature and Volume Lab Report Please complete the following worksheet as part of your Charles’ Law Assignment. Pleas

Seminole State College Charles Law Temperature and Volume Lab Report Please complete the following worksheet as part of your Charles’ Law Assignment. Please let me know if you have any questions regarding the assignment. 5-2: Charles’ Law: Temperature and Volume
Charles Law was discovered by Joseph Louis Gay-Lussac in 1802; it was based on unpublished work
done by Jacques Charles in about 1787. Charles had found that a number of gases expand to the same
extent over the same 80 degree temperature interval. You will be observing the relationship between the
temperature and volume of a gas similar to that studied by Charles.
1. Start Virtual ChemLab, select Gas Properties, and then select Charles’s Law: Temperature and
Volume from the list of assignments. The lab will open in the Gases laboratory.
2. Note that the balloon in the chamber is filled with 0.050 moles of an ideal gas (MW = 4 g/mol) at a
temperature of 100°C, a pressure of 1.00 atm, and a volume of 1.531 L. To the left of the
Temperature LCD controller is a lever that will decrease and increase the temperature as it is moved
up or down; the digit changes depending on how far the lever is moved. Digits may also be clicked
directly to type in the desired number, or they can be rounded by clicking on the R button. You may
want to practice adjusting the lever so that you can decrease and increase the temperature accurately.
Make sure the moles, temperature, and pressure are returned to their original values before
proceeding.
3. Click on the Lab Book to open it. Back in the laboratory, click on the Save button to start recording P,
V, T, and n data to the lab book. Increase the temperature from 100°C to 1000°C 100 degrees at a
time. Click Stop to stop recording data, and a data link icon will appear in the lab book. To help keep
track of your data links, enter ‘Ideal Gas 1’ next to the link.
4. Zoom Out by clicking on the green arrow next to the Save button. Click on the Stockroom and then on
the Clipboard and select Balloon Experiment N2. Again, set the temperature, pressure, and moles to
100°C, 1.00 atm, and 0.050 moles, respectively. You may have to click on the Units button to change
some of the variables to the correct units. Repeat the experiment with this gas labeling the data link
Real Gas N2.
5. Select the lab book and click on the data link icon for Ideal Gas 1. In the Data Viewer window, select
all the data by clicking on the Copy Data. Paste the data into a spreadsheet program and create a
graph with temperature on the x-axis and volume on the y-axis. Also create a graph for the data
labeled Real Gas N2.
6. Based on your data, what relationship exists between the temperature and the volume of a gas
(assuming a constant pressure)?
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8. Using the spreadsheet program, fit the ideal gas data to a line or printout the graph and use a ruler to
draw the best line through the data. The lowest possible temperature is reached when an ideal gas has
zero volume. This temperature is the x-intercept for the plotted line.
What is this temperature?
9. Now do the same analysis with the real gas data (N2). What temperature did you find?
10. Under these conditions, does Nz behave like an ideal gas?
11. Repeat the experiment using NH: what temperature did you find? (For ammonia the max temperature
is around 400°C, so use 50°C increments and go from 100°C to 400°C). You may need to reset the lab
in order to perform the NH: experiment.
12. Under these conditions does NH., behave like and ideal gas? What was different about NH ?
13. Based on what you know of Charles’s Law, what is happening at a molecular level when gases are
heated? How and why does this effect the volume?
14. Think of the implication of Charles’s Law, what are some real-life applications of this process? Try
and think about your field of interest.

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