Catalyst

• catalyst = substance that will increase rate but does not get used up (can get poisoned or denatured though)
• Catalyst = reduces necessary amount of Ea by giving reaction a different path to follow (less energy required for successful collisions)
• catalysts used in industry because:

  1. Higher rate of reaction -> increased profit ability (more product in same time)
  2. Lower temperatures used -> lower fuel costs + lower greenhouse gases emitted
• Different reactions will use different catalysts
• enzymes = biological catalysts
• Optimum temp = temp which an enzyme works at max
• uses of enzymes =

  • Biological washing powders
  • Bread making (in yeast)
  • Fermentation (in yeast)