Change in Volume of a Gas Planning Objective* Determine how the volume of a gas changes with temperature for a fixed amount of gas and pressure.* Determine the zero assumption absolute----- -----The volume is directly proportional to the temperature-------------------------------- -------------------- -------Preliminary Test----------------An experiment was carried out preliminary to test our apparatus. In this test we used an alcohol thermometer to see if there was any change in volume as the capillary tube was heated. Our results suggest that an increase in temperature leads to an increase in air bubble volume. Basic Research When a substance is given energy, the particles in it are given more kinetic energy. In the case of a gas, the particles will move at higher speeds. Hot air balloons were extremely popular at that time and scientists were eager to improve the performance of their balloons. Two eminent French scientists, Jacques Charles and Joseph-Louis Gay-Lussac, made detailed measurements of how the volume of a gas was affected by the temperature of the gas. Given the era's interest in hot air balloons, it is not surprising that these men were interested in the temperature-volume relationship of a gas. The conclusion of this experiment is expressed in Charles' law, expressed as follows. The volume of a fixed mass of gas at constant pressure is directly proportional to the absolute temperature. Absolute zero temperature has not been reached in practice; it is a theoretical prediction found by extrapolation of the experimental result...... middle of the paper......(i) Average air pressure,(ii) Average humidity(iii) Average air temperature 20 degrees centigrade(iv) Located on a wooden tableThese should cause the(3) I will ignore any anomalous results.(4) I will ensure that all measurements are taken accurately using a millimeter ruler To make the results more reliable I will repeat each variable three times and then I will take an average to form my resultsPredictionsMy predictions are based on the results of the experiments conducted by Charles. I predict that there will be a direct relationship between the volume of the air bubble and the temperature. In quantitative terms, in terms I think that the volume will increase directly proportional to the temperature (e.g. doubling the temperature will also double the volume).
tags