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0620-IGCSE-CHEMISTRY
PAPER-4-TOPIC-WISE PAST PAPERS / CHEMICAL ENERGETICS
- 6.1-Bond energy-Calculations-Set-1-qp-ms.pdf
- 6.1-Bond energy-Calculations-Set-2-qp-ms.pdf
- 6.1-Bond energy-Calculations-Set-3-qp-ms.pdf
- 6.1-Bond energy-Calculations-Set-4-qp-ms.pdf
- 6.2-Energy level diagrams-Set-1-qp-ms.pdf
- 6.3-Exo-endo reactions-Set-2-qp-ms.pdf
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Note:
IGCSE Chemistry Topic Questions Paper 4 Chemical Energetics on Chemical Energetics
Concepts that the exams aim to test you on are:
6.1 Energetics of a reaction
Core
- Describe the meaning of exothermic and endothermic reactions
- Interpret energy level diagrams showing exothermic and endothermic reactions
Supplement
- Describe bond breaking as an endothermic process and bond forming as an exothermic process
- Draw and label energy level diagrams for exothermic and endothermic reactions using data provided
- Calculate the energy of a reaction using bond energies
6.2 Energy transfer
Core '
- Describe the release of heat energy by burning fuels
- State the use of hydrogen as a fuel
- Describe radioactive isotopes, such as 235U, as a source of energy
Supplement
- Describe the use of hydrogen as a fuel reacting with oxygen to generate electricity in a fuel cell. (Details of the construction and operation of a fuel cell are not required.)
Course content
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