Practice question · True or false
In an elementary reaction step, the order with respect to each reactant does equal its stoichiometric coefficient.
Hints
- An elementary step describes molecules actually colliding.
- Its molecularity and its order coincide by definition.
Show the answer
True
Why
True, an elementary step is the collision event, so its rate is proportional to the concentrations of exactly the species colliding, raised to how many of each take part. This is the one case where reading order off the equation is valid.
Practise Reaction Kinetics
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