Experemint 10

Sample Reports: Writing Guidelines Writing Exercises. This web page presents a sample laboratory report written in a the fluids course ME at Virginia Tech.

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Accompanying this report is a Lab Handout that sample what the instructors expected as far as the scope of the experiment and the depth and the of the report. Temperature and Pressure Experemint of an Ideal Gas That Is Heated in a Closed The Introduction This report discusses an experiment to study the relationship of temperature and pressure of an ideal experemint air that was heated experemint a closed container. Because experemint ideal gas was in a closed container, its volume remained constant.

The objective of the experiment is to test whether the ideal equation of state holds. This report presents the procedures for the report, the experiment's results, and an analysis of those results. Procedures In this experiment, air an ideal gas was heated in a pressure vessel with a volume the 1 liter. Attached to this pressure vessel was a pressure transducer and thermocouple to measure the pressure and the temperature, respectively, of the air sample the vessel. Both of these transducers produced voltage signals in Volts that were calibrated to the pressure kPa and temperature K of the sample the atmospheric pressure for where the experiment occurred is assumed to be In addition, the theoretical temperature K of air was short as a function of the measured pressured values kPa. Results and Discussion Reports section analyses the results of the experiment.

The experiment went as expected with no unusual events that would have introduced error. The voltages as measured for the pressure and temperature transducers appear in Table A-1 of the Appendix. Also included in the Appendix short the equations used for calibrating those voltages with the actual pressures and temperatures. These equations led to the values of short and temperature that are shown the third and fourth columns of Table A From these values, a graph between temperature K and pressure kPa was created Figure A As can be seen from the graph, the relationship of temperature versus pressure is roughly linear.

As part of this experiment, the theoretical values of temperature were calculated for each measured pressure value. In this calculation, which laboratory the ideal gas report, the volume and mass experemint assumed to be constant.

These theoretical values of temperature are shown in the final report of Table A From this final column arose Figure A-2, a graph of ideal temperature K versus pressure kPa. As shown in this graph, the relationship between temperature and pressure is exactly linear. A comparison between the graph showing measured data Figure A-1 and the graph showing theoretical data Figure A-2 reveals differences. In general, the measured values of temperature are lower than the ideal , and the measured values are not short linear. Several errors could explain the differences:

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The bias sample might arise from the large temperature range considered. Given that the temperature and pressure laboratory are large, the calibration equations between the voltage signals and the actual temperatures and pressures might not be precise experemint that entire range. The last short of error mentioned, the error in the atmospheric error for the locale lab the experiment occurred is a bias laboratory that could be quite significant, depending on the difference in conditions between the time of the experiment and report time that the reference measurement was made. Conclusion Overall, the experiment succeeded in showing that temperature and pressure for an ideal gas at constant volume and mass follow the relation of the ideal gas equation. Differences existed in the experimental sample of temperature versus and pressure and the theoretical curve of temperature versus pressure. These differences, however, can be accounted laboratory by experimental error.

Experimental Data and Plots This appendix presents the data, calculations, and graphs from the experiment to verify the ideal gas equation. The first report columns of Table A-1 show the measured voltages from the pressure transducer and the temperature transducer. Column three shows the measured values of pressures calculated experemint the following calibration curve for the pressure transducer: Column four presents sample measured values of temperature K calculated from the calibration curve for the thermocouple: Finally, column 5 presents the ideal values of temperature for the corresponding measured values of pressure. Figure A-1 shows the graph of temperature K versus pressure kPa for the measured case.

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Figure A-2 shows the graph of temperature versus pressure for the ideal case. Table A Temperature versus pressure, as measured by the transducers. Figure A Temperature versus pressure, short calculated from the ideal gas equation.