Openchemistry/Thermochemistry

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Reaction Profiles

Exothermic

Endothermic

Products - Reactants

Enthalpy calculations

Working out the enthalpy of reaction

Rates of reaction

"More frequent effective collisions "

For a reaction to occur the particles need to collide with enough energy and the right orientation.  If both of these conditions are meet then we have a successful collision. The energy at the start of a reaction is to get over the activation energy.



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Key points
  • Four things affect the rate of reaction:
  • Temperature
  • Concentration
  • Surface area
  • Catalyst