The possible units for the reaction rate is mol L⁻¹ s⁻¹.
The rate of the reaction given reaction is :
aA +bB ---> cC + dD
r = k[A][B]
= -1/a Δ[A]/ Δt = -1/b Δ[B] / Δt = 1/c Δ[C] / Δt = 1/d Δ[C] / Δt
reaction rate = concentration / time
reaction rate unit is = concentration / time
concentration is moles per liter. therefore reaction rate unit is mol L⁻¹ s⁻¹. The rate of the reaction or we can say that the reaction rate is the speed of the reaction at which reactants are converted into the products.
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