8/16/2019 kinetika 00 - teori kinetika gas.ppt

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Teori kinetika gas

Iqmal TahirJurusan Kimia FMIPA UGM

8/16/2019 kinetika 00 - teori kinetika gas.ppt

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Reaksi kimia :padatan (s), airan (!), "asa air#ter!arut (a$), gas (g) dan !ain%!ain 

8/16/2019 kinetika 00 - teori kinetika gas.ppt

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Tumbukan mo!eku! 

Collision theory and temperature effects on rates

  Kinetic theory says that molecules are in constant motion. The kinetic

energy

  and molecule velocity increase with temperature. K ! "1#2$"mv2$

%eactions usually require

  collisions &etween reactant

  molecules or atoms. The formation

  of &onds requires atoms to come

  close to one another. 'ew &onds

  can form only if the atoms are  close enough together to share

  electrons. (ome collisions are not

  successful. These are called

  ineffective collisions. The particles

  simply hit and then re&ound. This

  animation illustrates what

  happens in an ineffective collision.

Collisions that lead to products

  are called effective collisions. )n

  effective collision must happen

  with a great enough speed*  energy and force to &reak &onds

  in the colliding molecules.

The animation illustrates an

  effective collision &etween two

  diatomic molecules. The two

  product molecules formed fly

  outwards.

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