Rates of Reaction Coursework – Hydrogen Peroxide and Catalas

In this investigation I will be trying to find out if the rate of a reaction changes if the concentration of the substance is altered. This will happen if the Hydrogen peroxide is decompostured.

Hydrogen peroxide (H202) is a clear poisonous liquid, which is produced during respiration. If this builds up inside the body it can kill, so an enzyme called CATALASE stops this from happening by breaking down the build up. More about Hydrogen Peroxide will be explained in my knowledge. The decomposition of Hydrogen peroxide looks like this:

2H2 O2 Catalase 2H2O+02

I think that the higher the concentration of Hydrogen Peroxide, the more bubbles will come out. The purer the Hydrogen Peroxide, the quicker the reaction rate. Because I am going to change the concentration of Hydrogen Peroxide after each experiment, I think that fewer bubbles will come out. This is because there will be less Hydrogen Peroxide in the beaker so there will be less to decompose.

I also think that if I double the Concentration, I will see twice the number of bubbles, and if I divide the Concen

Pressure – Changing the pressure on a gas is similar to altering the concentration of a solution. Increasing the pressure on a gas quickens the reaction. In a low pressure, particles are in a big area. The likeliness of them meeting is low. In a high pressure, particles will be compressed together into a smaller area, which will make them more likely to collide and react.

Some topics in this essay:
Hydrogen Peroxide, Collision Theory, Enzymes Enzymes, Example Particles, Knowledge Reactions, Light Temperature, Angeles Catalysts, Pressure Particles, hydrogen peroxide, Catalase Investigation, Enzymes Scientists, rate reaction, kinetic energy, chemical reactions, reaction rate, activation energy, pressure particles, test tube, collision theory, effective collisions, low pressure particles, concentration hydrogen peroxide, means rate reaction, size mass potato, water hydrogen peroxide,