I was thinking about factors that affect the rate of reactions So far, i know about:

 

-Catalysts

 

-Surface area

 

-Concentration or pressure

 

-Temperature

 

Are there any others? Please give examples in which they occur.

 

 

 

Thanx alot guys!

Agitation.

Sayonara³ said in post # :

Agitation.

 

What? :confused:

Shake it, shake it, shake it like a polaroid picture.

Sayonara³ said in post # :

Shake it, shake it, shake it like a polaroid picture.

 

WHAT? :confused::confused::confused:

 

 

 

Is this a joke? Or is there a communication gap between us?

Hold, on i think i got it! Are u trying to say whether the solution is shaken or not?

YES damn you.

 

Yay!! !i am finally beginning to undersand u guys! Are there any others?

wouldn`t agitation be a function of surface area, making a greater quantity of surfaces available at any given time?

Well, it may. This won't work however if the solid is completely submerged in the solution.

Is light a factor?

light would fall under the catagory of a Catalyst

in which reaction does it take place?

there are many reactions that light can be used to either trigger a reaction or catalyse

Examples please?

ok, how about silver chloride, it`s pure white until it`s exposed to light, then it goes a grey/black, same with Gold Chloride, that goes a few different colors but mainly a dark purple. both of these an others are used in photographic film.

Hydrogen and Chlorine gas, mixed and left in the dark is quite safe, put it in the light and BANG!

Thanx YT! Someone was also telling me about fibreglass. Is there any relevance?

not that I know of? the catalyst for that is usualy a peroxide, that`s not to say that there couldn`t be any light activated forms made? It`s just that I don`t know of any

the closest I know of is Photo Etching for circuit boards, the boards are often fiber glass with a copper foil adhesed to one or both sides.

oh yeah! i use those when i make circuits!

really?!

How about that for a coincidence!

lol! I just didn't think about it that way! I used that only once to be honest, then, i just used developer solution!

well all those are examples of light being used as a catalyst to lower the Activation energy (I call it Trigger energy sometimes, it means the same).

 

as for agitation, I`m still fairly sure that falls under the surface area catagory though.

YT2095 said in post # :

wouldn`t agitation be a function of surface area, making a greater quantity of surfaces available at any given time?

True, but if he wants to be thorough he should consider all functions.

actualy with regards to the orginal post, Pressure comes under Temperature rather than concentration

oh ok!

By the way, how does a catalyst work to speed up a reaction?