Monday, January 11, 2010

Heat in Chemical Reactions

Here are a few things to remember...
  • reactions that release heat are exothermic
  • reactions that absorb heat are endothermic
  • heat IS a form of energy
  • all chemicals have stored energy, also known as enthalpy
  • enthalpy is given the symbol 'H'
  • ΔH is the change in enthalpy

Enthalpy Diagrams

Exothermic

  • high to low enthalpy
  • ΔH is negative
  • heat is released

Endothermic

  • low to high enthalpy
  • ΔH is positive
  • heat is absorbed

wanna learn more about enthalpy change? click here....... you know you waaaaaannaa


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this is totally off topic but i think Mr. Doktor will find this pretty cool. well at least i think its pretty awesome..its a tv show on discovery or FSN called sport science. Hope you enjoy :)


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