11.5—Deduce the order (0, 1 or 2) with respect to a substance in a rate equation

Be able to deduce the order (0, 1 or 2) with respect to a substance in a rate equation, using data from: i a concentration-time graph ii a rate-concentration graph iii an initial-rate method.

Use —deduce the order (0, 1 or 2) with respect to a substance in a rate equation to connect the rule to the data and decision in the question.

This matters because —deduce the order (0, 1 or 2) with respect to a substance in a rate equation determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —deduce the order (0, 1 or 2) with respect to a substance in a rate equation 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.