The Kinetocs Experiment of Iodide Ions and Persulphate Ions.

In reference to the collision theory, molecules act as small spheres that collide and bounce off each other, transferring energy among themselves when the collide. In order for a reaction to occur, there must be collisions between molecules. Through experimentation, factors are discovered that influence the reaction rates of chemical reactions include the concentration of reactants, temperature, surface area, the physical state of reactants, and a catalyst. This experiment regarding the factors that affect reaction rate tests the effects of increased concentration and

If the concentration of the solution is increased the particles have less room to move around which creates a greater chance of collisions. The surface area of the reactant greatly affects the speed of which it reacts because if the reactant is grinded up or cut up the solution has more room to get to it. The reaction rate can be calculated by the formulae; rate of reaction = total amount of reactant used or product made ÷ time taken. (Collision theory and rates of reaction, 2013)

The speed of a chemical reaction can be made faster by increasing the surface Area.

The temperature can have a major impact on an enzyme. According to Campbell Biology author Reece etc. 2011 “The enzyme reaction will increase as the temperature increase with the increasing temperature….substrates collide with active sites more frequently when the molecules move rapidly.”(Reece etc 2011) Every enzyme hits its optimal temperature the reaction will be at its highest point.(Reece etc. 2011) When the

Temperature controls the speed the enzymes work at. Higher temperatures increase the kinetic energy which increases the chance of collision therefore speeding up the rate of

As the temperature increases, so will the rate of enzyme reaction. However, as the temperature exceeds the optimum the rate of reaction will decrease.

Many factors effect reaction rates, two shown above include temperature and concentration. Concentration affects the rate of reactions because the more concentrated a solution the more likely collisions between particles will be. This is simply because there are more particles present to collide with each other. When the temperature is higher, particles will

This image explains that the higher the temperature, the concentration, and the pressure the faster the rate of the reaction is.

Enzymes function most efficiently at the temperature of a typical cell, which is 37o C. Increases or decreases in temperature can significantly lower the reaction rate. What does this suggest about the importance of temperature-regulating mechanisms in organisms? In other words, why are conditions such as high fevers or hypothermia so

Temperature affects the rate of which the enzyme reacts, enzymes react typically faster in hotter temperatures than colder. Ph levels that are extremely low or high can stop enzyme activity completely or slow them down.If there is more enzyme concentration the reaction is quicker because enzymes become constant. Also if substrate activity increases, so the reaction time speeds up until maximum is reached.

Introduction/ Problem The purpose of this lab was to collect a gas which is produced in a reaction and then compare the volume that was actually collected to a target volume. Furthermore, is it to determine and counterbalance the assumptions made in the stoichiometric calculations when collecting the target volume of the gas. The objective is to collect a specific volume of H2 gas by calculating the mass of magnesium needed to produce the volume that we are looking for. During this laboratory you will follow through with a reaction between magnesium and hydrochloric acid. Hypothesis Predicting that the gas that will be produced during the chemical reaction will cause the volumes to change since it is going to affect the results.

Increasing the average energy of each particle meaning that more particles have enough energy for the particles to collide and bond. However this effect is short lived as most catalysts have a specific heat temperature range above or below that will slow down the rate of reaction, or even cause

Chemical kinetics involving reaction rates and mechanisms is an essential part of our daily life in the modern world. It helps us understand whether particular reactions are favorable and how to save time or prolong time during each reaction. Experiment demonstrated the how concentration, temperature and presence of a catalyst can change the rate of a reaction. 5 runs of dilution and reaction were made to show the effect of concentration on chemical reactions. A certain run from the previous task was twice duplicated to for a “hot and cold” test for reaction rate. The prior run was again duplicated for a test with

reaction rate increases. If the temperature of an enzyme gets to high the reaction rate will slow

Faster Rate Of Reaction