A Gaseous Reaction Occurs by a Two-Step Mechanism,shown Below

question 137

Multiple Choice

A gaseous reaction occurs by a two-step mechanism,shown below. Step 1: AX +Y₂ ⇌ AXY_{2 fast}
Step 2: AXY₂ + AX → 2 AXY slow
Including concentration of only reactants and products,what is the rate law for this reaction?

• A)Rate = k[AX][XY₂]
• B)Rate = k[AXY₂]/[AX][Y₂]
• C)Rate = k[AX]²[Y₂]
• D)Rate = k[AXY]²/[A Y₂][AX]

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