A proposed mechanism begins with the slow step A + B - P. Experimentally, doubling [A] alone while holding [B] constant quadruples the initial rate. What follows about the proposed mechanism?

Question

A proposed mechanism begins with the slow step A + B -> P. Experimentally, doubling [A] alone while holding [B] constant quadruples the initial rate. What follows about the proposed mechanism?

Accepted Answer

A. It must be revised, because its slow step predicts first order in A

Answer

It must be revised, because its slow step predicts first order in A

Answer

It is confirmed, since the rate depends on A as the step suggests

Answer

It fails only if the reaction absorbs heat

Answer

Nothing can be concluded, because mechanisms never predict rate laws

A proposed mechanism begins with the slow step A + B -> P. Experimentally, doubling [A] alone while holding [B] constant quadruples the initial rate. What follows about the proposed mechanism?

Explanation

Core Concept

Correct Answer

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