Kinetic theory

Fill the flat beaker with water. 6. Place a plastic bag over the top of the cylinder and place it, upside down, in the flat beaker. Make sure the bottom of the beaker is always underwater. 7. Fasten the beaker in place using the stand, clamp and boss. 8. Place one end of the tube inside the large beaker and fasten the other to the cynical flask’s arm. 9. Quickly pour the CaCO3 into the cynical flask, plug in the rubber stopper and start the stop watch. 10. Every 10 seconds,…

counterweight. This is turned into kinetic energy as the counterweight falls. Since the law of the conservation of energy states that the energy has to go somewhere, the energy in the counterweight also needs to go somewhere. In the instance of the Trebuchet, the kinetic energy in the counterweight is transferred along the throwing arm and into the projectile. When the projectile is fired, it travels upwards as well as forwards. This causes some of the kinetic energy to be turned into…

CHML 1046 General Chemistry 2 Laboratory Experiment “The Rate Law of an Iodine Clock Reaction” Objectives: To apply method of initial rates for investigation of influence of concentrations of reactants on the rate of the reaction. Determine the rate law of a particular reaction experimentally. Observe the effect of catalyst on the reaction rate. Examine the influence of temperature on the rate of this reaction. Calculate activation energy for the reaction from rate constants at two…

Content Stoichiometry is the relationship of the masses of the reactants and products in a chemical reaction. For a given mass of a substance in a reaction, the mass of any other substance in the reaction can be obtained using the coefficients of the balanced chemical equations and the molar masses of the substances involved. The amounts obtainable from a balanced chemical equation are called stoichiometric amounts (Villamar Jr., 2004). As what was said in the introduction, the first topic that…

The purpose of this experiment was to understand kinetic and potential energy and verify the Law of Conservation of Energy. Kinetic and potential energy are both forms of energy that usually coincide with each other; potential energy usually changes into kinetic energy and vice versa. While potential energy results from an object’s position or arrangement of parts, kinetic energy results from an object’s motion. Together, the sum of an object’s kinetic energy and the potential energy at that…

hChemical kinetics deals with the rates of chemical processes. Any chemical process is considered to consist of number of one or more single-step step which are known as elementary reactions elementary processes or elementary steps. Elementary reactions may involve dissociation or isomerisation of a single reactant molecule, which is referred as unimolecular step. Also there may be a single collision between two molecules, which is referred as a bimolecular step. It should be noted that…

The kinetics of the reaction between peroxomonosulphate with Lactic acid was studied in the presence of Mn(II) at alkaline pH. The reaction followed first order with respect to peroxomonosulphate. The rate of the reaction was studied under pseudo first order condition and found to increases with the [Mn(II)] and lactic acid. Thermodynamic parameters were calculated and reported. Based on the results a rate equation, kinetic scheme and a most probable mechanism has been predicted. Keywords: Alpha…

The concentration of CDCL and CSER is obtained by solving equation (1) and (2) CX = A1 / ax1 ………………..... (1) CY = [A2 – (ax2 × CX)] / ay2…...(2) Where,  A1 and A2are absorbance of mixture at λ1 and λ2respectively.  ax1 and ax2 are absorptivities of DCL at λ1 and λ2, respectively,  ay1 and ay2 are absorptivities of SER at λ1 and λ2, respectively,  CXandCYare concentrations of DCL and SER, respectively. Concentration of DCL and SER in the powder mixture is found by using equation (3) and (4)…

3.7. Equilibrium isotherms Langmuir isotherm proposed by Langmuir, (1918) with some limitations Dąbrowski, (2001) expressed as: (4) Where qm (mg g–1) is the maximum amount of the metal ion per unit weight of adsorbent, ‘qe’ is equilibrium adsorption capacity (mg g–1), ‘Ce’ is the equilibrium concentration of the adsorbate (mg L–1), and b is a constant which reveals the affinity of binding sites (L mg-1). From the plots between (Ce/qe ) and Ce the slope (1/qm ) and the intercept…

In the chapter Kinematics of Particles, we studied about various relations among time, position, velocity and acceleration of a particle. When we have a relation between any two parameters, we can calculate remaining parameters. In Kinetics of Particles, we applied Newton’s second law of motion ƩF = ma. The fundamental concept is when external forces acting on a particle are balanced (zero resultant), the particle will be in equilibrium. But when external forces acting on a particle are not…