Everything Chem

Chapter 56 reaction mechanisms reaction mechanism

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Unformatted text preview: is a measure of how fast a reactant is used up or how fast a product is formed in a chemical reaction. - We will often use “concentrations” (mol/L) for substances in solution and for gasses. • • One problem arises, for A - >B we could also base the definition of “rate” on the change of [A]. [A] (the reactant concentration) decreases. This would result in a negative rate, whereas the increase of [B] would result in a positive rate. To remove this ambiguity we define that Reactant rate = - Δ[A]/ Δt Product rate = Δ[B]/ Δt - A minus sign added for the reactants Differential Notation (This represents a slope) For the reaction on the left We say In general form rate is defined as, for th...
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