Gas Laws Lab Essay

IntroductionIn this lab we are going to check behavior of gas by working with a molecular orderl. Factors that put together gas behavior our imperativeness, temperature, chroma and the number of moles. We are going to nourishment to inconsistents constant and record the consanguinity or alternate in the stay factors.Independent variables Temperature, number of moles, volumeDependent variable PressureControlled variable apparatus used (computer program downloaded from the internet), volume and number of molesQuestion What is the relationship between thrust and temperature of a gas filled container with constant volume and number of moles?Hypothesis temperature and pressure are flat tie in. As temperature increases pressure increases. Pressure is directly proportional to temperature when the number of moles and volume are unplowed constant.ProcedureLog on to the Internet and visit heinnemann.co.uk/hotlinks and enter the run code 4266S. Click on weblink 3.2 the make-believe on the right entrust appear. In this simulation one can set the parameters as per desire. For this look into we need to set the volume and number of moles constant. Three trials are do for accuracy. For the first trial, we need to set the volume constant. The volume will persist in set to the default value. Then pump coke heavy species atom in the container and keep them the same until the next trial. The temperature will automatic all(prenominal)y go to 300K, remove heat to lower the temperature to 150K. Record the pressure produced.Add 50K severally time, in the beginning taking an opposite reading until the temperature r all(prenominal) 500K. Record the counterchange in pressure with simultaneous temperature in a table. Before outset the next trail hit the reset button. Before come to the foreing the punt trail change the depth of the container to 3.4nm. Measure the depth with a linguistic rule (the ruler is given as a tool for measurement).Pump 100 more than heavy species in the container to make a total of two hundred particles. Increase the temperature as done before with similar intervals and record the pressure in form of a table. Hit the reset again and start the final trail. For the third trial, increase the depth of the container to 9nm and pump in a total of 300 heavy species particle. Record the temperature and pressure in a table. The uncertainty in this experiment for temperature is +0.5K and for pressure is +0.5 Pa. Use the tables to graph the info to show the relationship between temperature and pressure.Conclusion and EvaluationFrom the data stack away and the graphs processed we can make out that pressure is directly related to temperature when the number of moles of particles and the volume of the container is kept constant. We know that as temperature increases the particles gain more energy and collide at a faster rate with each other and the wall of the container.As the number of collisions increases, the more the partic les exert campaign on the walls of the container. The force that the particles have on the walls is known as the pressure. in all the 3 graphs have a linear relationship and the slopes of their lines are the coefficient of the temperature because temperature is directly related to pressure. As shown by the graphs temperature is directly proportional to pressure. In other words keep the volume and the amount of gas constant and change the temperature (by heating or cooling) and observe the change in pressure (Pressure virtue P=const*T).The lines are not straight and a line of beaver fit is used. The unevenness of the lines on the graphs shows that there are dismiss errors compound in the experiment. The errors included are systematic, analytical and random. As the pressure was move the value noted was randomly chosen. The temperature was almosttimes a point high or lower, which again caused the pressure gauge to give a slight of value. Also the uncertainty in the measurement of volume showed that there were some errors also included while taking the measurement of the container.Suggestions for improvementsThe lab was on the button because of the number of trials done but it could be accurate by minify the errors made in the experiment. Try to hit the raise the temperature of the container in the simulation accurately if that is not possible try setting the default temperature to the sought after value and record the pressure. This would allow the pressure gauge to be more accurate.When taking measurement of the container for volume with a ruler try to forefend the parallax error, which is created by not looking at the measurement perpendicularly. Take the mode value from all of the values produced by the pressure gauge and clench a minute or two after setting the temperature and before noting the temperature. This helps to get a more accurate reading because the particles get bountiful time to settle. By recording the pressure value after freeha nded certain breaks in the experiment will help the lines on all the three graph to be less uneven and more accurate.