CHAPTER 09 · STUDENT SPACE

Energy Changes and Reversible Reactions

Review the essentials and check your understanding after your teacher’s explanation.

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Energy transfer and reaction pathways

Interpret and label energy changes and activation energy.

Bond energies

Calculate enthalpy changes from bonds broken and bonds formed.

Fuels and fuel cells

Compare energy sources and evaluate hydrogen–oxygen fuel cells.

Reversible reactions and equilibrium

Explain reversible changes and dynamic equilibrium.

Changing equilibrium conditions

Predict and explain the effects of changed conditions.

Industrial equilibrium

Explain the compromises used in the Haber and Contact processes.

Printable worksheets

Guided Worksheet

6 lessons with teacher examples, partner practice and hint references.

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Printable hint cards

Use a card when you need a starting step, then return to the question. Chapter 9 cards are on pages 4–6 of the collection. Print the relevant pages and cut out the cards you need.

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