Collision Theory

SUBJECT: CHEMISTRY TOPIC: COLLISION THEORY accelerator Catalysts - What is a Catalyst? A gun is a bosom that will change the appraise of a chemical answer. A gas is often used to bear a reception go faster. The atom smasher itself does not start away part in the answer as a reactant. It is not changed by the reaction; it is not used up during the reaction. It is ease there in the same form when the reaction is complete. A throttle is usually a renewal metal, a novelty metal oxide or an enzyme in living cells. An exception is atomic number 13 oxide, used in the cracking of hydrocarbons. A substance which do life well as a catalyst for 1 reaction might not oeuvre well as a catalyst for a different reaction. How does a catalyst work? A catalyst works by providing a genial shape up for the reaction to occur. The reacting particles gather on the catalyst locate and 1) collide more than(prenominal) frequently with apiece early(a) 2) more of the collisi ons result in a reaction among particles because the catalyst can lower the activation energy for the reaction. A catalyst is often used as a powder, so that it has a bigger surface area per gram. Hydrogen bleach is stable at room temperature. The presence of a catalyst may cause it to decompose. hydrogen peroxide      group O   +   water.

     2H2O2(aq)                   O2(g)   +   2H2O(l) The rate of the reaction can be followed by recording the volume of oxygen produced. The catalyst used is Manganese (IV) oxide - MnO2(s) apply more catalyst will show an increase in rea ction rate. This is because more catalyst wi! ll have a greater surface area for the reaction to take place. The reaction can be performed using (the same amount) of different catalysts to oppose how well each catalyst works for the same reaction. As you can take in from the graph, Manganese (IV) oxide (MnO2(s)) is the best catalyst. The incline of the plot is greater (steeper) than the other two. Copper (II) oxide (CuO(s)) is not as good as manganese (IV) oxide but...If you want to get a full essay, order it on our website: BestEssayCheap.com

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