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AP Chemistry/Unit 5: Kinetics
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Molecularity of Elementary Reactions

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Which statement best explains why elementary reactions requiring the simultaneous collision of three or more particles are exceedingly rare?

A

The probability of three particles aligning with proper orientation and energy simultaneously approaches zero

B

The rate constants for these reactions are temperature independent

C

Such reactions always have negative activation energies

D

Three-body collisions violate the law of conservation of energy

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