Rates of reaction

Chemistry IA Title : The relationship between the temperature and the rate of reaction in a chemical reaction. Introduction : Last academic year, towards the end, in IB chemistry hl class, my class had the chance to learn about the concentration, temperature, catalysts, etc and their effects on the rate of reaction in a chemical reaction. I knew that the rate of reaction had a relationship with the factors but I wanted to know how it changes witness it for myself. I wanted to perform an experiment

would result in the fastest rates of reaction and reaction time. This was because of the scientific reasoning that at larger temperatures and concentrations atomic particles collide with greater energy and more frequently. The data collected from the experiment supports the hypothesis. It was observed that the largest concentration of reactants, 0.2M and 0.5M, had the highest reaction rate of 0.00484 mol/L/s, and quickest induction phase, 1 second. Also, the slowest reaction time was 21.51 seconds and

Aim: To prove that reaction rate is faster if the temperature is increased, in accordance to the collision theory. Introduction: In all matter there are small substances, called molecules. When two of these molecules collide with sufficient energy, there is a chance of a successful chemical reaction, this is the collision theory. These chemicals reactions are effected by a variety of outside factors and the duration for a reaction to occur is called the reaction rate. Reaction rate can be measured

this experiment was that an increase in concentration will increase the rate of reaction by decreasing the time taken for the colour change to occur. Figure 1.1 shows time on the x axis and concentration on the y axis, it can be seen that as [reactant] decreases, time increases.Thus, the results correlate with the hypothesis that an increase in concentration will produce a faster reaction time and subsequently a larger reaction rate - regardless of change in [KIO3] or [Na2S2O5], both reactants produce

to be able to measure the rate of reaction of peroxydisulfate ion with iodide ion. Students will be allowed to calculate the reaction order, partial order and rate constant of four different reaction solution. Furthermore, observe and record the time when the color changes when KI solution (potassium iodide), starch solution, Na2S2O3 solution (sodium thoisulfate), KNO3 solution (Potassium nitrate) and EDTA solution is mixed in an Erlenmeyer flask. Measuring a reaction rate is not only significant

reactants affects the rate of reaction Chemistry Coursework This experiment is aimed at investigating how the concentration of reactants affects the rate of reaction: The reaction between hydrochloric acid and magnesium will be used to investigate how different concentrations of the acid affect the rate of reaction. The gas produced from the reaction will be measured and used to display the average rate of reaction. The rate of reaction is a measure of how fast a reaction is going and how long

An Investigation of the Effects of Temperature on the Rates of Reaction of Enzyme Activity Enzymes are important protein macromolecules that act as biological catalysts that catalyse biochemical reactions and speed up reaction rates inside the living systems of plant and animal cells. The practical studies the break down reaction rate of enzymes where the substrate molecule binds and interacts with the complementary enzyme at the active site. For the break down process, activation energy located

1. How does surface area affect reaction rate? 2. How does the mass of an object affect its acceleration? 3.How does the temperature of a solvent affect the solubility of a solute? Variables involved in the investigation Chosen Aim: How does surface area affect reaction rate? What has been discovered previously? By increasing the surface area of the reactant, more particles are exposed to the other reactant. The speed of a chemical reaction can be made faster by increasing

A chemical reaction is a process that involves the movement of the molecules in a substance. All chemical reactions involve both reactants and products. Reactants are substances that cause a chemical reaction, and products are substances that are generated in the reaction. The reaction rate for a reactant or product in a particular reaction is defined as how quickly or slowly a reaction takes place. In general, the reactions between covalent compounds are slow. For example rusting of iron. In the

How does the concentration affect the rate of a reaction? 30/1/2012 By Alex Whenman Contents page 1. Introduction to my investigation 2. Background information on concentration 3. What experiment I will be conducting 4. Equipment I will be using 5. How I will be conducting the experiment 6. Heath and safety risk assessment 7. What I think will happen 8. How I will set up my experiment 9. Why I’m having my experiment set out like