LAB REPORT No 4
NAME_______________________________ DATE________________
Experiment # 1. Boyle’s Law: Pressure-Volume Relationship in Gases.
Volume mmHg reading on the sensor X Pressure of the air in
mmHg = 760 mmHg + X Pressure of the air atm
1/Volume
60 mL 0 760 1 0.0167
58 mL 0.0172
56 mL 0.0179
54 mL 0.0185
52 mL 0.0192
50 mL 0.0200
48 mL 0.0208
1. Represent the relationship between the pressure and the volume on a graph, (Volume is being plotted along the x-axis and Pressure is being plotted along the y-axis).
2. Represent the relationship between the pressure and the inverse of the volume on a graph, (1/V is being plotted along the x-axis and Pressure is being plotted along the y-axis).
3. According to the graphs, what is the relationship between the pressure and the volume of the gas at constant temperature?
Graph of Pressure versus Volume
Graph of Pressure versus 1/Volume
Experiment # 2. Charles’s Law: Temperature-Volume Relationship in Gases
Trial 1 Trial 2
Temperature of boiling water T1 (0C)
Temperature of boiling water T1 (K)
Temperature of cooling water T2 (0C)
Temperature of cooling water T2 (K)
Volume of air in flask at higth Temperature (mL) V1
Volume of water in the flask at lower temperature (mL) Vw
Volume of air in flask at lower Temperature (mL) V2
V1 – Vw = V2 (experimental)
1.Determine the accuracy of the experimental determination of the volume (V2 in the data table) by calculating that volume using Charles’ Law.
V1/T1 = V2/T2 V2 = (V1/T1) x T2
Your calculations:
2. Assuming the calculated volume to be correct, calculate the percentage of error in the experiment: [(V2 experimental – V2 calculated) / V2 calculated] x 100 = % error
Trial 1 Trial 2
V2 (experimental)
V2 (calculated using Charles’ Law)
[V2 experimental – V2 calculated]
% error
What experimental factors are assumed to be constant in Charles’ Law experiment?
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LAB REPORT NUMBER 4
NAME_______________________________ DATE________________
Experiment #1: Boyle’s Law and the Pressure-Volume Relationship in Gases
Volume mmHg readout on the sensor X Air pressure in
mmHg = 760 mmHg Plus X Atmosphere pressure
1/Volume
0.0167 60 mL 0 760
58 mL = 0.0172
0.0179 mL 56 mL
0.0185 mL 54 mL
52 mL 0.0192
50 mL 0.0200
48 mL 0.0208
1. Represent the relationship between the pressure and the volume on a graph, (Volume is being plotted along the x-axis and Pressure is being plotted along the y-axis).
2. Represent the relationship between the pressure and the inverse of the volume on a graph, (1/V is being plotted along the x-axis and Pressure is being plotted along the y-axis).
3. According to the graphs, what
