effect of catalysts Flashcards
1
Q
what does catalysts do?
A
provide an alternative reaction pathway with a lower activation energy
2
Q
how does a catalyst affect the reaction profile?
A
produces intermediate
3
Q
how does a catalyst affect the distribution curve?
A
lower Ea
- more particles have energy > Ea -> more successful collisions
4
Q
what are the advantages of using a catalyst in industries?
A
lower cost as it allows lower temperature to be use, fewer emissions and waste products
5
Q
what are heterogeneous catalysts?
A
usually solids and reactants are in solution/gaseous
- reaction occurs on surface of catalyst
6
Q
what is the active site?
A
where reactants adsorb onto surface catalyst
7
Q
what does the active site do?
A
weaken bonds within reactant molecules
