# Pressure and temperature relationship in gases lab report

is assumed that temperature will be constant throughout the experiment. Determine the relationship between pressure and volume of a gas and describe that relationship with a . They should report the y-intercept value from their graph. 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. Pressure-Temperature Relationship in Gases. By Brian Su, Andrew Wang, and Gabriel Lee. Through this lab, the students observed the relationship between.

Turn the hot plate to a high setting. Prepare an ice-water bath. Put about mL of cold tap water into a second 1 L beaker and add ice. Put about mL of room-temperature water into a third 1 L beaker. Put about mL of hot tap water into a fourth 1 L beaker.

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### Pressure-Temperature Relationship in Gases by Susan Price and Cindy Oubre

If you have older sensors that do not auto-ID, manually set up the sensors. Obtain a rubber-stopper assembly with a piece of heavy-wall plastic tubing connected to one of its two valves. Attach the connector at the free end of the plastic tubing to the open stem of the Gas Pressure Sensor with a clockwise turn.

Leave its two-way valve on the rubber stopper open lined up with the valve stem as shown in Figure 2 until Step 6d.

## PRESSURE - TEMPERATURE RELATIONSHIP IN GASES LABQUEST 7

Insert the rubber-stopper assembly into a mL Erlenmeyer Figure 2 flask. Twist the stopper into the neck of the flask to ensure a tight fit. Close the 2-way valve above the rubber stopper—do this by turning the valve handle so it is perpendicular with the valve stem itself as shown in Figure 3. The air sample to be studied is now confined in the flask. On the Meter screen, tap Mode.

Change the mode to Selected Events. Change the graph settings to display a graph of pressure vs. Tap the Graph tab. Tap on the x-axis label and choose Temperature. Place the flask into the ice-water bath. Make sure the entire flask is covered see Figure 3. Place the Temperature Probe into the ice-water bath.

When the temperature and pressure readings have both stabilized, tap Keep to store the temperature and pressure readings. Repeat Step 10 using the room-temperature bath. Repeat Step 10 using the hot-water bath.

### PRESSURE - TEMPERATURE RELATIONSHIP IN GASES LABQUEST 7

Use a ring stand and utility clamp to suspend the Temperature Probe in the boilingwater bath. Do not burn yourself or the probe wires with the hot plate. To keep from burning your hand, hold the tubing of the flask using a glove or a cloth.

After the Temperature Probe has been in the boiling water for a few seconds, place the flask into the boiling-water bath and repeat Step Stop data collection and remove the flask and the Temperature Probe. Examine the data points along the displayed graph of pressure vs. To examine the data pairs on the displayed graph, tap any data point.

As you tap each data point, the temperature and pressure values are displayed to the right of the graph. Remove the boiling water from the hot plate.

Do not burn yourself or the probe wires with the hot plate. To keep from burning your hand, hold the tubing of the flask using a glove or a cloth.

After the temperature probe has been in the boiling water for a few seconds, place the flask into the boiling-water bath and repeat Step Examine the data points along the displayed graph of pressure vs. As you move the cursor right or left, the temperature X and pressure Y values of each data point are displayed below the graph. Record the data pairs in your data table.

Round pressure to the nearest 0. Examine your graph of pressure vs. We will use the Kelvin absolute temperature scale. Move the cursor up and to the right until the L3 heading is highlighted. Record the Kelvin temperature values in your data table.

Follow this procedure to calculate regression statistics and to plot a best-fit regression line on your graph of pressure vs.

The linear-regression statistics for these two lists are displayed for the equation in the form: If the relationship between pressure and absolute temperature is a direct relationship, the curve should be linear and pass through or near the origin.

Examine your graph to see if this is true for your data. Use the TI-Graph Link cable and program to transfer the graph of pressure vs.

Kelvin temperature with regression line to the computer.