Absolute Zero Data Chart: Run A Tempera- Tempera- tute (°C) Pressure (ATM) Run B Tempera- turs (°C) Pressure (ATM) Run C

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Absolute Zero Data Chart Run A Tempera Tempera Tute C Pressure Atm Run B Tempera Turs C Pressure Atm Run C 1 (71.05 KiB) Viewed 39 times

Absolute Zero Data Chart Run A Tempera Tempera Tute C Pressure Atm Run B Tempera Turs C Pressure Atm Run C 2 (39 KiB) Viewed 39 times

Absolute Zero Data Chart Run A Tempera Tempera Tute C Pressure Atm Run B Tempera Turs C Pressure Atm Run C 3 (45.72 KiB) Viewed 39 times

Absolute Zero Data Chart: Run A Tempera- Tempera- tute (°C) Pressure (ATM) Run B Tempera- turs (°C) Pressure (ATM) Run C turs Pressure (ATM) (°C) Boiling water 100 100 100 21.6 Boiling water 28.8 Boiling water 71.5 26 Atmosphere 26 26 17.4 Atmosphere 23.7 Atmospher e 57.9 0 Ice 0 0 15.7 Ice 21.5 Ice 51.3 -72 -72 -72 12.1 15.8 38.5 Dry ice & Ethanol Liquid Nitrogen Dry ice & Ethanol Liquid Nitrogen Dry ice & Ethanol Liquid Nitrogen -196 - 196 -196 4.3 6.2 14.8 Data Pressure (atm) Run C Temperature (°C) 100 26 Pressure (atm) Run B 28.8 71.5 23.7 Pressure (atm) Run A 21.6 17.4 15.7 12.1 4.3 0 21.5 57.9 51.3 38.5 -72 15.8 -196 6.2 14.8
CALCULATIONS Show all calculations for full credit. Answers should be given to the correct number of significant digits. 1. Using MS Excel, plot the graph of Pressure (on the vertical axis) vs. Temperature on the horizontal axis for the set of points and find the curve of best fit and determine the equation of the curve of best fit. 2. Use the curve of best fit to determine the experimental value of the absolute zero of temperature. 3. Calculate and determine the absolute zero temperature in (°C). 4. Calculate the percent difference between each of the three experimental values and the theoretical value of absolute value
Post Lab Questions: 1. Are your graphs linear? If so, why? If not why? 1. Give reasons why your values of absolute zero do not agree with the theoretical value. 2. How did the increase in mass affect the absolute value? (refer to Procedure 8) 3. Describe the results of the balloon and liquid nitrogen. Give reasons for these results. 4. Where during your experimental set up do you expect to find sources of error?