← Zurück zur vorhergehenden Übersicht: Chemisches Gleichgewicht
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If any reaction is given, the reactants move on to the products.
(a) How are speed rates generally defined?
(b) What applies to reactants, what applies to products?
Solution: (a) The rate of velocity is defined as the change in concentration over time, or in short: v= change in concentration divided by change in time
Even shorter: v = Δc / Δt
Note that v must always be a positive size (definition)
(b) From the definition (v must be positive), it follows:
v(Edukte) = – Δ(reactants)/Δt = -d[Edukte]/dt
v(Produkte) = + Δ(products)/Δt = +d[Produkte]/dt
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