CATALYSTS Flashcards
1
Q
define catalysts
A
increase the rate of chemical reactions but are not used up in the reaction
2
Q
why are catalysts important in terms of industry
A
they lower the activation energy (PROVIDE A DIFFERENT PATHWAY THAT HAS A LOWER ACTIVATION ENERGY) so less energy to needed to start a chemical reaction this saves money
3
Q
explain how catalysts increase the rate of reaction
A
they lower the activation energy by providing an alternative pathway
this means that more particles can collide per unit time
this increases the rate of the reaction
4
Q
why are catalysts not present in the chemical equation for a reaction
A
they are not used up in the reaction therefore they are not a reactant
5
Q
what acts as catalysts in living organisms
A
enzymes
