2007-06-04 07:14:29 · 12 answers · asked by atljasmine4 1 in Science & Mathematics ➔ Chemistry
in chemistry, yes. it is defined as one that speeds up the rate of reaction.
but the definition of catalyst i learnt in biology is that it is one that ALTERS the speed of reaction instead
2007-06-04 07:33:05 · answer #1 · answered by chipmunks 2 · 1⤊ 2⤋
A catalyst increases the rate of a reaction by lowering the activation energy.
2007-06-04 07:17:08 · answer #2 · answered by Anonymous · 1⤊ 0⤋
The energy rate of the reaction increases due to the action of the catalyst but the catalyst is not changed
2007-06-04 07:30:40 · answer #3 · answered by Norrie 7 · 0⤊ 1⤋
No. A catalyst is added to a reaction to increase its rate. An "inhibitor" decreases the rate of a reaction.
2007-06-04 07:18:17 · answer #4 · answered by lightningflame1642 3 · 0⤊ 1⤋
In chemistry, a catalyst is a substance which increases the speed of a reaction WITHOUT taking part in it.
2007-06-04 07:55:57 · answer #5 · answered by deDios_benita 1 · 1⤊ 0⤋
Catalyst increase the rate of reactions by providing the proper shape/area for other molcules to bind to.
2007-06-04 07:18:38 · answer #6 · answered by ErinMarie 2 · 1⤊ 0⤋
not at all....definition of catalyst is a material which speeds up the reaction without affecting it self...
so the answer is no..it dosent decrease..but increase the reaction speed.
2007-06-04 07:17:45 · answer #7 · answered by Spirit of ~^Spirituality^~ 3 · 2⤊ 0⤋
No, it increases the rate of reaction
The dictionary definition is:
A substance that increases the rate of a chemical reaction without actually undergoing any change itself.
This is a really good website on them:
http://www.bbc.co.uk/schools/gcsebitesize/chemistry/chemicalreactions/4ratesofreactionrev1.shtml
Hope I was able to help :D
2007-06-04 07:19:15 · answer #8 · answered by Anonymous · 1⤊ 0⤋
It increases the rate of reaction by lowering its activation energy
2007-06-04 07:16:56 · answer #9 · answered by Anonymous · 1⤊ 0⤋
When a catakyst increases the rate of a reaction, it is called a promoter else it is called an inhibitor.
2007-06-04 07:19:46 · answer #10 · answered by ag_iitkgp 7 · 1⤊ 1⤋