Q:Cl + O3 ---> ClO + O2O + ClO ---> Cl + O2= O + O3 ----> 2O2What is the catalyst? The intermediate?How do you know which is which? If the rate law is rate=k [O3] [Cl]determine:a) the overall order.b) unit for k.c) the rate determining step, justify your answer.

Cl is the catalyst. ClO the intermediate. The catalyst is the component which does not change in overall reaction. He forms some intermediate component(s) with the reactants. In the later reaction steps the intermediate(s) react forming the catalyst in its original state. (a) The overall order is the sum of the orders with respect to the components: n = 1 +1 = 2 (b) the unit of the rate of reaction is r [=] mol/ (Ls) (more general mol per unit time and volume) compare dimensions mol / (Ls) [=] k · mo/L · mol/L =k [=] L/(s mol) (more general unit volume per unit time and mole) (c) First reaction For elementary reaction steps the order of the reaction rate with respect to a reactant is equal to stoichiometric coefficient. Hence the rate of first reaction is: r? = k?·[Cl]·[O?] Overall rate is given by the rate determining step, while other reaction steps are in equilibrium: r = r? = k?·[Cl]·[O?] If second reaction is the rate determine step r? = k?·[O]·[ClO] while reaction 1 is at equilibrium K? = ( [ClO]·[O?] ) / ( [Cl]·[O?] ) =[ClO] = K?·( [Cl]·[O?] ) / [O?] the overall rate would be: r = r? = k?·[O]·[ClO] = K?·k?·[O]·[Cl]·[O?] / [O?] = k·[O]·[Cl]·[O?] / [O?] That doesn't match the observed rate law

Q:Why does the CuO catalyze the reaction rate faster and faster when catalyzing the decomposition of hydrogen peroxide or tell me how to make the catalyst catalyst faster

CuO exothermates when catalyzing the decomposition of hydrogen peroxide, so the reaction becomes faster.

Q:about 1-3 sentences on this will do thank you

a catalyst is something that makes a reaction go faster than it normally would. An enzyme is a catalyst; it has all the parts for the reaction on it and help organic materials break down or transfer energy or whatever reaction it needs.

Q:It's a GCSE Chemistry questionI just need to know why there are so many

Many important chemical reactions require inputs of energy to proceed. If a catalyst is present less energy will be required to complete the reaction. Catalysts are substances that are mixed in with materials that are to be reacted, but they themselves do not, in the end, change chemically. They establish a local environment that promotes one or more chemical reactions to take place. A catalyst is important in many industrial processes. Sulfuric acid, which is used to produce batteries, detergents, dyes, explosives, plastics, and many other produces, is commonly produced using a catalyst called vanadium oxide. Ammonia, a primary component of many fertilizers, could not be produced economically without the use of iron oxide which speed up the reaction. The process of catalyst also affects the state of our global environment. Automobiles use catalytic converters to treat exhaust. The metals platinum and palladium facilitate the chemical conversion of noxious gases to more inert forms, greatly decreasing the environmental impact of combustion engines. Probably the most important impact of catalyst is on life itself. All important biochemical reactions are catalyzed by molecules called enzymes. Most enzymes are proteins which catalyze specific reactions within cells. Some examples include polymerases, which synthesize DNS and RNA, peptidases, which digest protein, and ATP synthases, which produce energy for the many different cell activities.

Q:Co and No form a chemical equation for Co2 and No2 under the action of a catalyst

Write the catalyst on the horizontal line, where NO is the oxidant and CO is the reducing agent

Q:explain how a catalyst can affect the rate of reaction but not be in the overall equation.?

Catalysts act to increase the rate of reaction, for example by providing an alternative reaction pathway which lowers the activation energy of the reaction i.e. increasing the likelihood of successful collisions between the reactants. However, they are not used up during the course of the reaction, and at the end you have exactly the same mass of catalyst as you started with, unlike the reactant(s), which will be used up to form product(s). So, the overall equation of the reaction does not include the catalyst because it only needs to show the substances which are used up or formed during the course of the reaction i.e. the reactants and products.

Q:Chemistry is often said that the catalyst can change the material reaction rate, rate and speed What is the difference

The rate is related to the concentration of matter, the velocity is physically, is the vector, has the direction

Q:how does the amount of a catalyst affect reaction rate?

It's more the surface area than the amount, but, in general, the more catalyst exposed, the quicker the reaction will proceed.

Q:I was hoping to buy a land rover lr4 or lr2, but with the lr4 having gas mileage in the mid teens, i wanted to know if there is a way to improve it. I dont drive on the highway too much. I'd like to know if there is anything else to improve mileage too. I drive a lot of people around for functions, family, and others and I looked at other suvs but those two looked the best.

Fuel catalyst is another name for fuel additive, the companies that make these additives make all kinds of claims how it increases power and reduces emiissions.. blah blah blah. Fuel catalyst is nothing more then a octane booster (gas engines) or cetane booster (diesel engines), it like all the other bogus products are worthless, octane booster will only show an improvement in performance IF the octane level in your current fuel supply is too low, higher octane fuel burns slower then lower octane fuel, that's how it quenches pinging and preignition both of which are caused by incorrect engine design and/or settings. Always use the lowest octane fuel that the engine will tolerate, if you have to pull advance out of the total timing then it needs more octane to run full timing and make max power, the only thing you can do to improve the quality of fuel in your tank is add a stabililizing additive such as (Stabil), it treats the fuel and prevents it from going stale or turning to varnish, it's especially useful when the vehicle is parked for long periods with fuel in the tank and carburetor, normally after a month or two of being parked the fuel in the carb turns to varnish and clogs the jets, with Stabil the fuel doesn't change composition.

Q:why is palladium/platinum a good catalyst?

Palladium and platinum are good catalysts because they _adsorb_ certain molecules, especially gases. Adsorption is NOT the same as _absorption_. Adsorption is a process by which a chemical (gases or liquid) physically becomes attached to the _surface_ of an adsorbate (a solid). Once gas molecules are adsorbed on the surface of a catalyst, they are much nearer each other and more likely to react. Absorption is a process by which a gas or liquid is incorporated throughout the volume of an absorbate (a solid), rather than just on the surface. The fact the palladium happens to _absorb_ hydrogen molecules well probably has little to do with its function as a catalyst and is probably just a coincidence. In fact, two of the main reactions in a catalytic converter don't involve molecules with hydrogen atoms at all. On the other hand, WHY platinum and palladium are good catalysts are a mystery. Presumably, they are good at enhancing the Van der Waals forces that cause adsorption with other molecules, but WHY the platinum family of metals do this better than other metals is not fully understood (I don't think).