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11.1—The terms: i rate of reaction ii rate equation, rate=k[A]m[B]n where m and n are 0, 1 or 2 iii order with respect to

Syllabus
2017
Objective
11.1
Level
A2

—The terms: i rate of reaction ii rate equation, rate=k[A]m[B]n where m and n are 0, 1 or 2 iii order with respect to

Understand the terms: i rate of reaction ii rate equation, rate=k[A]m[B]n where m and n are 0, 1 or 2 iii order with respect to a substance in a rate equation iv overall order of a reaction v rate constant vi half-life vii rate-determining step viii activation energy ix heterogeneous and homogeneous catalyst.

Use —the terms: i rate of reaction ii rate equation, rate=k[a]m[b]n where m and n are 0, 1 or 2 iii order with respect to to connect the rule to the data and decision in the question.

This matters because —the terms: i rate of reaction ii rate equation, rate=k[a]m[b]n where m and n are 0, 1 or 2 iii order with respect to determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —the terms: i rate of reaction ii rate equation, rate=k[a]m[b]n where m and n are 0, 1 or 2 iii order with respect to to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: use the formula and units given in the question, show the substitution and interpret the result; the calculation alone is not the conclusion.

ConceptA-Level Edexcel Chemistry A2