The overall reaction is believed to occur by the following mechanism

CHEMISTRY · Single correct · A Level · Chemistry · Rate equations · Rate equations

Problem

The overall reaction X+2 Y→Z\text{X}+2\,\text{Y}\rightarrow \text{Z} is believed to occur by the following mechanism. Step 1 X ++ Y ⇌\rightleftharpoons XY (fast equilibrium) Step 2 XY ++ Y ⟶\longrightarrow Z (slow) Which rate law is most consistent with this mechanism? (a) rate =k[X]2[Y]=k[\text{X}]^{2}[\text{Y}] (b) rate =k[X][Y]2=k[\text{X}][\text{Y}]^{2} (c) rate =k[Y]2=k[\text{Y}]^{2} (d) rate =k[X][Y]=k[\text{X}][\text{Y}]

Related theory

Browse the problem library