12.7—The entropy change of the system for a reaction, ∆Ssystem, given the entropies of the reactants and products

Be able to calculate the entropy change of the system for a reaction, ∆Ssystem, given the entropies of the reactants and products.

Use —the entropy change of the system for a reaction, ∆ssystem, given the entropies of the reactants and products to connect the rule to the data and decision in the question.

This matters because —the entropy change of the system for a reaction, ∆ssystem, given the entropies of the reactants and products determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —the entropy change of the system for a reaction, ∆ssystem, given the entropies of the reactants and products to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —The entropy change of the system for a reaction, ∆Ssystem, given the entropies of the reactants and products is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.