Table 1: Temperature and volume data

Trial Temperature (Celsius) Volume (mL)
Starting Volume Room Temperature =
Hot Water Trial 1 107 5.6ml
Hot Water Trial 2 108.3 5.4ml
Cold Water Trial 1 lo 4.4ml
Cold Water Trial 2 lo 4.4ml

(Insert a graph that you either drew here in Word or built from Excel using the data collected in this section)

Note: On the graph, you are graphing volume on the y axis, temperature on the x axis. Use a line graph - not a bar graph. You should have a linear graph, and if all goes right, you can extrapolate back so that the x axis is crossed at 0 K or -273 C.


1. What happened to the volume of gas when the syringe was submerged in each water bath? Using the concepts discussed above, describe why this occurs, keeping in mind the definition of temperature.
The volume of gas increased when submerged in hot water. As the water temperature increased the gas within the syringe began to rise causing an increase in pressure. When the syringe was submerged in cold water the gases started to fall in pressure.

2. How do you know that pressure is held constant in your experiment?
Because, the temperature of the water was consistent for each test!

3. Using a ruler, draw a straight line of best fit through your data points, extrapolating the line until it intersects the (negative) x-axis. Why can you assume a straight line, i.e., a linear relationship?

4. At what temperature does your line intersect the x-axis? What volume corresponds to this temperature?

5. Would it be possible to cool a real gas down to zero volume? What would most likely happen first?

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  1. 5. Using a ruler, draw a straight line of best fit through your data points, extrapolating the line until it intersects the (negative) x-axis. Why can you assume a straight line, i.e., a linear relationship?

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