Energy ChangesDiagram

Bond Energy Visualised

Part of Bond Energies (HT) — GCSE Chemistry

This diagram covers Bond Energy Visualised within Bond Energies (HT) for GCSE Chemistry. Revise Bond Energies (HT) in Energy Changes for GCSE Chemistry with 20 exam-style questions and 15 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 2 of 13 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Topic position

Section 2 of 13

Practice

20 questions

Recall

15 flashcards

🔗 Bond Energy Visualised

Bond energy calculation showing energy in from breaking bonds versus energy out from making bonds

Figure 1: Energy in (breaking bonds in reactants) versus energy out (forming bonds in products)

Keep building this topic

Read this section alongside the surrounding pages in Bond Energies (HT). That gives you the full topic sequence instead of a single isolated revision point.

The Currency of Chemical Reactions How It Works: Calculating Energy Change from Bond Energies Deep Dive: Breaking and Making Bonds Worked Example: Combustion of Hydrogen

Practice Questions for Bond Energies (HT)

Which statement correctly describes the energy change when chemical bonds are broken?

A. Energy is released to the surroundings
B. Energy is absorbed from the surroundings
C. No energy change occurs
D. Energy may be released or absorbed depending on the bond

1 markfoundation

Explain how you would determine, from a bond energy calculation, whether a reaction is exothermic or endothermic.

2 marksstandard

Quick Recall Flashcards

What is bond energy?

The energy needed to break 1 mole of a particular bond

What are the units for bond energy?

kJ/mol (kilojoules per mole)

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The Currency of Chemical Reactions

How It Works: Calculating Energy Change from Bond Energies