Catalyst Flashcards
what is a catalyst
a substance which increases the rate of reaction
What are catalysts important for commercial reasons
Increase reaction rates and reduce energy costs
Why can we use catalyst in reactions
They don’t change the reaction equation - don’t effect the products
Catalyst’s are not used up in the reaction so can be used again
What do catalyst work
The decrease the activation energy needs for the reaction to occur.
They do this by providing an alternative reaction pathway that has a lower activation energy
What are Emzymes
Enzymes are biological catalysts
What is a biological Catalyst
They speed up reactions the chemical reactions in living cells
Name 3 reactions catalysed by emzymes
respirations, Photosynthesis, protein synthesis
Name on industrial process involving a catalyst
Making alcoholic drinks - Fermentation (enzymes from yeast cells) - converting sugar into ethanol and carbon dioxide
