Gas Laws – Dimensional Analysis, Gas Questions, 2 Very Easy Graphs Hello,  Need a hand wrapping up these questions please. Ive done the questions throu

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Gas Laws – Dimensional Analysis, Gas Questions, 2 Very Easy Graphs Hello, 

Need a hand wrapping up these questions please. Ive done the questions through #7. Would like my equation for the line in terms of experimental variables to be double checked for accuracy. Then start on question 8 please. Prepare two computer-generated graphs with the data collected in Part A.

· Graph #1 : Plot Pressure vs. Volume

· Graph #2 : Plot Pressure vs. 1/Volume

For any graph that shows a linear trend, apply the linear curve fit to the data. Re-write the equation for the line in terms of experimental variables.

Introduction – Part B

Pressure vs. Temperature

Background

Gases are made up of molecules or atoms that are in constant motion and exert pressure when they collide with the walls of their container. The velocity and the number of collisions of these molecules is affected when the temperature of the gas increases or decreases. In this experiment, you will study the relationship between the temperature of a gas sample and the pressure it exerts. Using the apparatus shown in Figure 1, you will place an Erlenmeyer flask containing an air sample in water baths of varying temperature. Pressure will be monitored with a Gas Pressure Sensor and temperature will be monitored using a Temperature Probe. The volume of the gas sample and the number of molecules it contains will be kept constant. Pressure and temperature data pairs will be collected during the experiment and then analyzed. From the data and graph, you will determine what kind of mathematical relationship exists between the pressure and absolute temperature of a confined gas. You may also do the extension exercise and use your data to find a value for absolute zero on the Celsius temperature scale.

Experiment Part B: Pressure vs. Temperature

You will use the same Gas Properties simulation to complete Data Table B in the post lab (these instructions are also in the post lab)

· Click on the “Ideal” simulation (NOT explore, energy, or diffusion)

· Click on the green “+” sign to add particles of “air” to the container

· Use the double arrow to inject 200 Heavy (blue) particles (4 clicks)

· Do not change the number of particles in the simulation once you start collecting data.

· Click the circle next to Volume to lock this variable.

· Find the thermometer at the top of the container, click the down arrow to change the units to °C.

· Find the bucket located under the container. Imagine the container is being submerged in the water bucket. Click the lever in the middle and pull down (you should see ice in the bucket) and pull up (you should see fire).

· Adjust the lever on the bucket to bring the temperature of the container to 0°C and record the corresponding pressure on the table.

· Adjust the lever to 3 different temperatures and record those pressure readings on the table. (Suggestions: use higher temperatures like room temperature and “hot water”)

Complete data analysis for Part B now.

Prepare two computer-generated graphs with the data collected in Part B:

· Graph #1 : Plot Pressure vs. Temperature (using temperature in Kelvin)

· Graph #2 : Plot Temperature (in °C) vs. Pressure

For any graph that shows a linear trend, apply the linear curve fit to the data. Re-write the equation for the line in terms of experimental variables.

For graph #2, click on the trendline, and adjust the y-axis to a minimum of -350.0 and x-axis to -5.0 to display where this line crosses the y axis. You should see your line is now extended to show the y-intercept location.

Copy both graphs into your post lab and complete questions 13-20 for Part B and compete additional questions 21 & 22.

Post Lab & Submission

Turn in your completed Report Sheet into the correct assignment box on D2L.

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