Please help me!I need factors that afftect rate of reaction?

Question

What other factors affect the rate of reaction? simple as that!?
My question is very simple can anyone help me answer it?
I think one of it is temperature am i right

Answer 1

concentration, pressure, temperature, catalysts present.

Answer 2

You are right that temperature is one of the factors. The faster molecules (or atoms) move the more likely they are to crash into one another and the more energy they'll have in that crash.

But there are other factors: concentration is a biggie. The more molecules there are in a given volume, the more likely they are to bang into one another.

Other things that can affect concentration (besides just putting more stuff in) is changing the volume. Make it smaller and for the same amount of molecules, the concentration goes up. Pressure can have a similar effect.

Finally, another factor is the nature of the reaction itself. Is it one that takes a lot of energy to make happen or just a little? The amount of energy needed to make a reaction go when the molecules bump into one another is called its "energy of activation". Some reactions have a very low Eact and don't need much to make them go. Some Eact are so high that even though the reactions is favored to go by thermodynamics, it rarely happens.

You can change the increase the rate of a reaction with a high Eact by giving it a different path to get there, one having a lower Eact. You do that with a catalyst which provides a lower energy pathway to the product.

There are other ways of getting a reaction to go faster, but they start getting specialized. As just one example, you may be able to divide a solid up into much smaller pieces to give it more surface area to be exposed to the other reactant. A block of steel won't burn in oxygen, but divide it up into steel wool (like the stuff in a Brillo pad) and it will burn away.

Answer 3

You are right.
Besides temperature, as one said before me, concentration of reactants, catalyst and pressure. But pressure can be connected here with concentration of reactants. Light.. for some types of reactions, definitely not for all.
And yes, also the size of the particles is very important (because specific area that can go into reaction is increased) and stirring also. Hope I've been of some help.

Answer 4

heat increases the kinetic energy of particles and makes a collision between them more likely.

enzymes also increase the rate of reaction as they decrease the activation energy needed to create a bond as they give a surface for the reactions to take place on. they act as a biological catalyst.

concentration of substances as well, the more particles there are the more likely a collision between reactants is.

hmm soz cant remember the rest!

Answer 5

Temperature is one. THere is also the concentration of the reactants. (If you are speaking of first order and second order reactions). Those are the major two.

Answer 6

Concentration of reactants, temperature, catalysts and light.