The Maxwell Distribution Curve below supports the prediction about the increase of temperature, increasing the rate of reaction. Curves T1 and T2 show the distribution of kinetic energies for gaseous at those two temperatures. Curve T2 represents a higher temperature and thus is positively skewed. The peak of the graph with the most molecules is shifted towards a higher kinetic energy and the curve broadens out. For both T1 and T2, the total area under the curve is the same and the fraction of molecules with energy greater than the activation energy (Ea) is significantly larger in T2 than in T1.
A safety audit for the gas-solid fluidization experiment was conducted. The following safety concerns were found when performing the audit: operating beyond the operational limits, spillage of the beads, risk of head injury from bending over to change the beads in the apparatus or from the low bar, and congestion of the workspace. One of the biggest safety concerns with this lab involved the small glass beads that acted as the solid in the experiment. If the gas flow rate goes below 50 standard cubic feet per hour (SCFH), the small glass beads could enter the flow meters. This would result in damages to the flow meters, giving false readings which in return could result in the team, conducting the experiment, to adjust flow rates beyond the operational limits that the apparatus could handle.
Throughout the experiment, there was a struggle to keep the heat stable which led to inaccurate data. Additionally, while changing the receiver from cyclohexane to toluene there was a loss of distillate which also led to the errors observed in the data. Furthermore, if more data were collected for each compound it would be a better representation of the experiment's results. If these errors were avoided, then the experiment would be more efficient in distilling the two compounds from each other and the plateau would be as sharp as figure 6 in the lab
Bottom Chamber gas: When you apply heat to the bottom chamber, the gas increases in pressure because of the evaporated molecules. More molecules in a space means higher pressure. This higher pressure pushes the liquid up the tube to a lower pressure zone. The molecules hit the liquid with so much force and hit it so frequently that the liquid is forced into another area that has molecules that do not hit it so hard or so frequently. Top Chamber
In the U.S. hydraulic fracking has been a main source of energy during today’s times, it 's cheap effectiveness makes us think this . People should know how hydraulic fracturing is not as clean and amazing as we think it is.Hydraulic fracking cannot be a sustainable option for America. There are too many faults for it to be upheld in the long run and we cannot depend on it as our main resource of energy forever. The way hydraulic fracturing is affecting the environment is too harmful for it to be a sustainable option. It contaminates drinking water, turns unused lands into industrial dumps.
The molecular weight of a substance has a great influence to its rate of diffusion. The results from the experiment showed that a substance with a lower molecular weight like potassium permanganate has a high rate of diffusion unlike other substances with high molecular weight because of the number of diffusible molecules. If there is a high quantity of diffusible molecules present in a substance, most likely, it will have a slow rate of diffusion. More accurate results can be achieved by considering various factors like the correct handling of specimens, the type of medium where diffusion is taking place, temperature, equal amount of substance used, and others. LITERATURE CITED Brown, LeMay, Bursten.
The force of a projectile is directly linked to KE given to it and is equal to 1/2 〖MV〗^2 where M is the mass and V the velocity. The two ways used to enhance it were to increase the "calibre" of the weapon i.e. the diameter of the bore of the barrel and the second way was enhancing the velocity imparted by the modern gunpowder, this has a greater impact as KE, as it is the square of velocity
The increase of temperature has 2 effects on almost all solutes that are solid. They dissolve more quickly, and a greater amount of the solution dissolves. The other way to change the solubility, is when the solution is a gas, is to change the pressure. At high pressure the gas solubility in a liquid solvent increases(1). However, for gases.
The margin of error present in the experiments was 48.14% ,8.50% and 10.45% respectively. The heat reaction between magnesium and hydrochloric acid was -462kJ/mol with a 10.45% margin error likely resulting from inadequate sandpapering of the magnesium strip or inaccurate amounts of HCl From the data collecting, it is determined that there’s a correlation between the literature value and the temperature change. In the first experiment the literature value of the eat change is positive so the change in temperature is expected to be negative. This means that that the final temperature will be less than the initial temperature. It is presented as qsoln-q cal.
If 2 particles collide with enough energy the will be a chemical reaction and a product will be formed, this is known as the collision theory. High concentrations imply that more reacting molecules are at high proximity to each other therefore intermolecular collisions are frequent therefore forming products frequently. To measure, the effect of each of above factors, one has to hold some factors constant during rate reaction experimentation. Therefore, this study intends to investigate the effect of concentration and surface area of reactants on the rate of chemical reactions. I am doing this experiment to gain the knowledge of the effects of concentration levels on the rate of reaction.