Gas Laws

Use the Aspire web page on gas laws for this assignment

http://sunshine.chpc.utah.edu/javalabs/java12/gaslaws/index.htm

It should take you no more than 1 hour to complete.

Activity I, Changing Volume, and work through the Student Lab.

Using the computer setup, determine how changes in volume will affect gas pressure. Set the temperature at 323 degrees Kelvin (K), which is equal to 50 degrees C. Record eight different volumes and the resulting pressures in the table. The lab instructions ask you to repeat the experiment at 2‑3 different temperatures, but we will deal with temperature later. Use SPSS to plot these data. Be sure to use the X‑axis for the independent variable, and the y‑axis for the dependent variable. Hand in this graph.

Answer analysis questions 1‑4.

The additional analysis questions need not be answered for this assignment, but they are fair game for exam questions. Along these same lines, it would be useful for you to know Boyle's law: P₁V₁=P₂V₂=k.

Activity 2, Changing Temperature.

Work through the student lab.

Keep the gas volume at 8.0 liters. Set the temperature to eight different values and determine how the changes in temperature affect gas pressure. Record the eight data points in the data table. Copy the table. As in activity 1, use SPSS to plot the data.

Answer analysis questions 1 & 2. Also answer the second set of analysis questions (spray cans, bicycle tires, pickle jars ).

Please read the link about absolute zero.

Activity 3, Changing Volume through Temperature.

Work through the student lab. Note that pressure will remain constant (in this case at 3 mm Hg). Set the temperature to 8 different values, and note how changes in temperature affect volume. Record the eight data points in the data table. As before, use SPSS to plot the data. Answer the analysis questions.