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What is collision theory

User Amarachi
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Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. Molecules must collide with the proper orientation but the likely hood of this is really rare.
User Jaabh
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The collision theory explains that gas-phase chemical reactions occur when molecules collide with sufficient kinetic energy. The collision theory is based on the kinetic theory of gases; therefore only dealing with gas-phase chemical reactions are dealt with.

Hope this helps!
User Jobeso
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