Kinetic theory

Experimental Conditions It is important to note that in our lab experiment we used galena, PbS, with 170 – 200 mesh (i.e. there were 170 to 200 wires per inch of sieve used to sort out the galena crystals). This means our diameter range of our particle size was 75-90 μm. Table 1:Experimental Conditions for PbS leaching FeCl3·6H2O (g) to be added is found by: The weight of FeCl3·6H2O (g) added in our experiment was slightly larger than the theoretical amount of FeCl3·6H2O needed, as can be seen…

Chemical Practice Experiment 10 – Kinetics Joshua Fu* Tien Tran TA: Jamie Trindell April 25, 2016 INTRODUCTION This experiment focused on the concept of chemical kinetics, which describes the speed at which a chemical reaction occurs and the amount of reactant or product remaining after a specific period of time. Kinetics is important in analyzing the rates of certain species and reactions, and is a crucial technique to predict different reactions. Kinetics is a very broad topic, thus…

To improve the yield of the ester the reaction should be heated using a high temperature. This would favour the formation of the products in this reaction, as the formation of an ester (esterification) is an endothermic reaction. Thus use of a high temperature will push the equilibrium to the right hand side, and a larger yield of the ester will be produced. To improve the yield of the Ester the reaction mixture could be refluxed for longer period of time so that more reactants are converted…

temperature will increase the rate of reaction and as the temperature slowly increases to a certain point then the reaction rate will decrease. When the temperature increase above 37°C, then denature will occur. Also, the temperature increase, the kinetic energy where H2O2 molecules bind frequently with the catalyst increase the enzymes. Conclusions: An enzyme speeds up the chemical reaction, the activation energy allows energy to require to break bonds apart and lower activation…

Purpose: The main purpose behind this experiment is to know the how the strength of the intermolecular forces changes with the molecular size and structures. Based on the examination of the evaporation of different liquids and by determining the vapor pressure of different alcohols at a different temperature. Producer: There will be two parts in this experiment to know the strength of the intermolecular forces of different liquids, to conclude the role of the molecular size and structure of…

When a ball is kicked at its side it begins to spin around in its place according to the location of the kick. If it is kicked at the side and a bit towards the bottom the ball rises up in the air while spinning on its own axis. In the beginning it will fly exactly in the direction of the kick, and as it slows down due to friction with the air, the spinning motion will cause the air on one side to move faster than that on the other side and because of the Magnus effect the ball will then change…

The Michaelis constant, Km, is the amount of substrate needed for the enzyme to obtain half of its maximum rate of reaction. (Oregon 2015) It reveals the enzymes affinity for the substrate and shows the magnitude of the enzymes affect on changing the rate of the reaction. For example, an enzyme with a high Km needs a large concentration of substrate to efficiently increase the rate of the reaction. (Oregon 2015) A low Km indicates that the enzyme will increase the rate of reaction with a small…

The swing of a baseball bat, the sound of it gliding through the air, the swoosh sounds as it swings by. Now there is something used for a job that is closely related with the baseball bat but a bit more tactical and is in the law enforcement and requires a police baton, which is used for both law enforcement and self defenseive techniques. The type of police baton should be chosen carefully due to its affordability, length, and the material it is made from so that it’s helping out with the job…

Hydroelectric energy is made from a turbine that turns falling water into mechanical energy; then that mechanical energy is turned into electric energy. This process helps produce electric energy from the kinetic energy of falling water. How does this process involve chemistry? It first begins with the mechanical energy of the water. Mechanical energy is all the energy that is put upon an object. In the case of the hydroelectric generator, the mechanical energy is made from the position of…

A bow is basically a two-armed spring that stores mechanical “potential energy” once the string is drawn and pulls back the limbs. After you recoil the cord, you utilize your muscles to exert a force on the string that bends the limbs backward. The quantity of force that your fingers exert on the string once you’ve to force it all the means back is named the “draw weight.” The elastic or spring energy is currently “potential energy” that may be reborn into launching associate arrow after you…