Zadania z chemii IB HL

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What does the pre-exponential (Arrhenius) factor, A, represent in the Arrhenius equation $k = Ae^{-E_a/RT}$

? A. The fraction of collisions with the correct orientation and sufficient frequency B. The activation energy of the reaction C. The overall rate…

Which reaction is expected to have the largest Arrhenius factor, $A$ , at a given temperature? A. $\ce{Cl2(g) + Br2(g) -> 2BrCl(g)}$ B. $\ce{Cl(g) + CH4(g) -> HCl(g) + CH3(g)}$ C. $\ce{C2H4(g) + HBr(g) -> C2H5Br(g)}$ D. $\ce{Cl(g) + Br(g) -> BrCl(g)}$