Topic 4 Gases, equilibria and ammonia Chemistry Unit C3 Chemistry in action Edexcel gcse separate triple award science

Doc Brown's Edexcel GCSE Science-Chemistry Revision Notes

EDEXCEL GCSE Chemistry Unit C3 Chemistry in action STUDY NOTES

Chemistry Unit C3 Topic 4 Gases, equilibria and ammonia Revision Notes

4.1 HT only: Be able to demonstrate an understanding that one mole of any gas occupies 24dm³ at room temperature and atmospheric pressure and that this is known as the molar volume of the gas.
4.2 HT only: Be able to use molar volume and balanced equations in calculations involving the masses of solids and volumes of gases.
4.3 HT only: Be able to use Avogadro’s law to calculate volumes of gases involved in gaseous reactions, given the relevant equations.
4.4 Recall that nitrogenous fertilisers are manufactured from ammonia and that they promote plant growth.
4.5 Be able to demonstrate an understanding of the environmental consequences of the over-use of fertilisers, including excessive plant growth in rivers and lakes.
4.6 Know that chemical reactions are reversible and that the Haber process uses a reversible reaction between nitrogen (extracted from the air) and hydrogen (obtained from natural gas) to form ammonia.
4.7 HT only: Be able to demonstrate an understanding of the concept of dynamic equilibrium.
4.8 HT only: Be able to explain how the position of a dynamic equilibrium is affected by changes in:
- a) temperature
- b) pressure
4.9 HT only: Be able to demonstrate an understanding of the consequential effects of these changes on the rate of attainment of equilibrium and of the need to use a catalyst.
4.10 HT only: Be able to describe how, in industrial reactions such as the Haber process, the temperature, pressure and catalyst used produce an acceptable yield in an acceptable time.
Revision Notes and Quizzes to help you revise
- Edexcel GCSE CHEMISTRY
- When revising, these pages provide you with a summary of what you need to know and be able to do.
- BUT remember, your primary source of revision are your class notes, investigations and Edexcel GCSE science textbooks.
- Introduction to reversible reactions and dynamic chemical equilibrium, Ammonia synthesis - Haber Process Synthesis
  - Foundation m/c QUIZ on Reversible Reactions, Equilibrium, Ammonia Synthesis & Uses
  - Higher m/c QUIZ on Reversible Reactions, Equilibrium, Ammonia Synthesis & Uses
- Moles and the molar volume of a gas, Avogadro's Law
  - Molar volume type in answer QUIZ
  - Molar volume multiple choice QUIZ
- Reacting gas volume ratios, Avogadro's Law and Gay-Lussac's Law (ratio of gaseous reactants-products)
  - Reacting volumes type in answer QUIZ
  - Reacting volumes multiple choice QUIZ

EDEXCEL GCSE Science CHEMISTRY 3 UNIT 3 C3 Chemistry in action INDEX

ALL Edexcel GCSE Science Units: Edexcel GCSE Science Biology Unit B1 Influences on life

Edexcel GCSE Science Biology Unit B2 The components of life * Edexcel GCSE Science Unit B3 Using biology

Edexcel GCSE Science Unit C1 Chemistry in our world * Edexcel GCSE Science Unit C2 Discovering Chemistry

Edexcel GCSE Science Unit C3 Chemistry in action * Edexcel GCSE Science Unit P1 Universal Physics

Edexcel GCSE Science Unit P2 Physics for your future * Edexcel GCSE Science Unit P3 Applications of Physics

GCSE Science-Chemistry courses AQA GCSE Science A CHEMISTRY * EDEXCEL GCSE Science CHEMISTRY

OCR GCSE 21st Century Science A CHEMISTRY * OCR GCSE Gateway Science B CHEMISTRY

WJEC GCSE Science-CHEMISTRY * Northern Ireland CCEA GCSE Science-CHEMISTRY

** Doc Brown's Edexcel GCSE Chemistry Revision







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