The experimentally determined rate law for the conversion of substrate D to product E…

CHEMISTRY · Single correct · AP · Chemistry · Kinetics · Kinetics

Problem

The experimentally determined rate law for the conversion of substrate D to product E in the presence of catalyst X is rate =k[X]2[D]=k[\text{X}]^{2}[\text{D}]. Which proposed mechanism is most consistent with this rate law? (a) 2X + D →\rightarrow X2X_2 + E (slow); X2X_2 ⇌\rightleftharpoons 2X (fast) (b) X + D ⇌\rightleftharpoons XD (fast); XD + D →\rightarrow X + E (slow) (c) X + X ⇌\rightleftharpoons X2X_2 (fast); X2X_2 + D →\rightarrow X2X_2 + E (slow) (d) 2X + D ⇌\rightleftharpoons X2DX_2D (fast); X2DX_2D →\rightarrow 2X + E (slow)

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