Charles's Law

Materials

Procedures

  1. Take a 600-mL beaker and fill it with 500 mL of tap water.
  2. Remove the tip cap from a syringe and pull on the plunger to draw about 5mL of air into the syringe and replace the tip cap to seal the air inside the syringe.
  3. Immersed the syringe in the water bath; use a test tube holder and clamp the barrel of the syringe to the side of the beaker.
  4. Take and record the temperature of the water.
  5. Place the beaker on the hot plate and boil the water.
  6. Take and record the temperature of the water every 20 degrees.
  7. Take and record the volume of the syringe at each temperature.
  8. Convert temperature from oC to K by adding 273.
  9. Repeat the lab two (2) more times.
  10. Graph by using volume (V in mL) against temperature (T in K), y-axis against x-axis, respectively. (color code the three different trials)

Data

Temperature (K) Volume of Air in Syringe (mL)
(initial water temperature) 5
??? ???
??? ???
??? ???
??? ???

Questions

1. What is the manipulating variable? What is the responding variable? ???
2. Describe the shape of the graph. ???



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Chemistry in January