## APA Tables and Figures 1 // Purdue Writing Lab

Sample Lab Report #2 in the Writing Guidelines for Engineering and Science Students: guidelines to help students of science and engineering make their writing more efficient for others to read and to make the process of writing more efficient for them to perform. When inserting figures and tables into a lab report, they should go in according to the order in which they are referenced as well, making sure that each appears only after the text which originally refers to it. So, if in the text you reference Figure 1, then Table 1, then Table 2. Back in March of this year, I wrote a simple tutorial on Reportlab, a handy 3rd party Python package that allows the developer to create PDFs programmatically. Recently, I received a request to cover how to do tables in Reportlab. Since my Reportlab article is so popular, I figured it was probably worth the trouble Continue reading Reportlab Tables – Creating Tables in PDFs with Python →.

## Reed College | Online Writing Lab | Laboratory Report Instructions

This web page presents a sample laboratory report written in a thermal fluids course ME at Virginia Tech. Accompanying this report is a Lab Handout that states what the instructors expected as far as the scope of the experiment and the depth and organization of the report.

Temperature and Pressure Measurements of an Ideal Gas That Is Heated in a Closed Container Introduction This report discusses an experiment to study the relationship of temperature and pressure of an ideal gas air that was heated in a closed container. Because the ideal gas was in a closed container, lab report table, 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 experiment, 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 of 1 liter. Attached to this pressure vessel was a pressure transducer and thermocouple to measure the pressure and the temperature, respectively, of the air inside the vessel. Both of these transducers produced voltage signals in Volts that were calibrated to the pressure kPa and temperature K of the air the atmospheric pressure for where the experiment occurred is assumed to be In addition, the theoretical temperature K of air was calculated as a function of the measured pressured values kPa.

Results and Discussion This 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 lab report table pressure and temperature transducers appear in Table A-1 of the Appendix.

Also included in the Appendix are the equations used for calibrating those voltages with the actual pressures and temperatures. These equations led to the values of pressure 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 lab report table values of temperature were calculated for each measured pressure value. In this calculation, which used the ideal gas equation, the volume lab report table mass were assumed to be constant, lab report table.

These theoretical values of temperature are shown in the final column lab report table 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 values, lab report table, and the measured values are not exactly linear.

Several errors could explain the differences: precision errors in the pressure transducer and the thermocouple; bias errors in the calibration curve for the pressure transducer and the thermocouple; and imprecision in the atmospheric pressure assumed for the locale. The bias errors might arise from the large temperature range considered, lab report table. Given that the temperature and pressure ranges are large, the calibration equations between the voltage signals and the actual temperatures and pressures might not be precise for that entire range.

The lab report table type of error mentioned, the error in the atmospheric error for the locale where the experiment occurred is a bias error that could be quite significant, depending on the difference in conditions between the time of the experiment and the 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 graph of temperature versus and pressure and the theoretical curve of temperature versus pressure, lab report table.

These differences, however, can be accounted for by experimental error. Appendix: Experimental Data and Plots This appendix presents the data, calculations, lab report table, and graphs from the experiment to verify the ideal gas equation.

The first two columns of Table A-1 show the measured voltages from the pressure transducer and the temperature transducer. Finally, column 5 presents the ideal values of temperature for the corresponding measured values of pressure. Figure A-1 shows the graph of lab report table K versus pressure kPa for the measured case.

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, lab report table, as calculated from the ideal gas equation.

### How to Write a Lab Report - Steps and Template Back in March of this year, I wrote a simple tutorial on Reportlab, a handy 3rd party Python package that allows the developer to create PDFs programmatically. Recently, I received a request to cover how to do tables in Reportlab. Since my Reportlab article is so popular, I figured it was probably worth the trouble Continue reading Reportlab Tables – Creating Tables in PDFs with Python →. Sample Lab Report #2 in the Writing Guidelines for Engineering and Science Students: guidelines to help students of science and engineering make their writing more efficient for others to read and to make the process of writing more efficient for them to perform. The lab report is usually due in your lab section at pm one week after you perform the experiments. Print your report the night before it is due. Please do not turn in your report to anyone's mailbox. Talk to your lab instructor if circumstances beyond your control keep you from turning in a report on time.