Klara Beinhorn P6
- Obtain the already prepared ice water, room temperature, and hot water buckets. (when your group is done, pass them on to the next group)
- Connect the Temperature Probe and the Gas Pressure Sensor into CH1 and CH2 of the computer interface. Then connect the computer interface to your computer through the USB port.
- Open Logger Pro and open the file "07 Pressure- Temperature" from the Chemistry with Computers folders of Logger Pro. .
- Insert the robber stopper along with the heavy-wall plastic tubing to the open stem of the Gas Pressure Sensor.
- Insert the rubber-stopper assembly into a 125 mL Erlenmeyer flask.
- Close the the two-way valve by turning the valve so it is perpendicular with the valve stem.
- Click collect to begin collection -collect pressure vs. temperature data for your gas sample.
- Now place the flask in the bucket with cold water along with the temperature probe until the readings on logger pro stop moving.
- Repeat step 8 for the other buckets. (be sure to go from cold to hot)
- Click stop when you have finished collecting the data. Record the pressure and temperature values in the data table provided.
- Examine the graph in order to decide if it is direct or inversely related.
- Change the temperature scale to Kelvins in order to make it an absolute value temperature scale.- choose new calculated column from the data menu, enter "Temp Kelvin" as name, "T Kelvin" as short name, and "K" as unit. Enter the formula 273+.
- Click Curve Fit, try a fit, and auto scale the graph. Use the snipping tool to copy the graph onto your lab.
- When the flask entered the cold water, pressure decreased.
- When the flask entered the hot water, pressure increased.
- Observed the graph making a linear line
- As temperature increased, volume increased and vice versa = directly related.
"Definition of Gay-Lussac's Law in English:." Gay-Lussac's Law: Definition of Gay-Lussac's Law in Oxford Dictionary (American English) (US). N.p., n.d. Web. 29 Apr. 2016.
"Joseph Louis Gay-Lussac." Wikipedia. Wikimedia Foundation, n.d. Web. 29 Apr. 2016.