What this topic covers
Topic C5: Monitoring and controlling chemical reactions has 3 subtopics:
- Monitoring chemical reactions
- Controlling reactions
- Equilibria
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GCSE OCR Higher Chemistry · Topic 5 of 7
Topic C5: Monitoring and controlling chemical reactions – GCSE OCR Higher Chemistry revision notes
Choose a subtopic. Topic C5: Monitoring and controlling chemical reactions covers Monitoring chemical reactions, Controlling reactions, and Equilibria in GCSE OCR Higher Chemistry. 28 lessons in 3 subtopics.
Revise Topic C5: Monitoring and controlling chemical reactions for GCSE OCR Higher Chemistry, including Monitoring chemical reactions.
28
Lessons
3
Subtopics
Topic C5: Monitoring and controlling chemical reactions lessons by subtopic
28 lessons, grouped by subtopic.
Monitoring chemical reactions
- Understanding Solution Concentration
- Calculating Mass of Solute in Solutions
- Introduction to Titrations
- Titration Calculations
- Gas volume fundamentals and molar volume: Describe the relationship between moles and gas volume at RTP and use the molar gas volume of 24 dm3.
- Gas volume calculations from balanced equations: Calculate gaseous reactant and product volumes using balanced equations and the molar gas volume at RTP.
- Introduction to Instrumental Methods
Controlling reactions
- Calculating Mean Rate of Reaction
- Rate Graphs and Tangents
- What affects how fast reactions happen?
- Understanding Collision Theory and Activation Energy
- How Concentration, Pressure and Temperature Affect Reaction Rate
- Surface Area Effects and Using Proportionality in Collision Theory
- What are catalysts and how do they work?
- Identifying catalysts and reaction profiles
- Understanding Acid Strength and Concentration
- pH Scale and Hydrogen Ion Concentration
Equilibria
- Understanding Reversible Reactions
- Introduction to the Haber Process
- Equilibrium and Rate in the Haber Process
- Energy Changes in Reversible Reactions
- Dynamic Equilibrium in Closed Systems
- Understanding Equilibrium Systems and Le Chatelier's Principle
- Predicting Changes in Equilibrium Systems
- How concentration changes affect equilibrium
- Predicting equilibrium shifts from data
- How Temperature Changes Affect Chemical Equilibrium
- How Pressure Changes Affect Equilibrium Position
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Frequently asked questions
What is Topic C5: Monitoring and controlling chemical reactions?
Topic C5: Monitoring and controlling chemical reactions covers Monitoring chemical reactions, Controlling reactions, and Equilibria in GCSE OCR Higher Chemistry. 28 lessons in 3 subtopics.
What is the concentration formula?
The concentration formula is concentration = mass of solute ÷ volume of solution, measured in g/dm³. The Calculating Mass of Solute in Solutions notes cover this in full.
What is a catalyst?
A catalyst is a substance that increases the rate of a chemical reaction without being used up in the reaction. The What are catalysts and how do they work? notes cover this in full.
What are enzymes?
Enzymes are biological catalysts made of protein that speed up specific reactions in living organisms. The What are catalysts and how do they work? notes cover this in full.
What is a titration?
A titration is a quantitative analytical technique where a solution of accurately known concentration is added to a solution of unknown concentration until the reaction between them is just complete. The Introduction to Titrations notes cover this in full.
What colour change does methyl orange show?
Methyl orange is red in acid and yellow in alkali, with a sharp colour change at the end point. The Introduction to Titrations notes cover this in full.
What colour change does phenolphthalein show?
Phenolphthalein is colourless in acid and pink in alkali. The Introduction to Titrations notes cover this in full.
Why are reversible reactions important?
Reversible reactions are the basis of major industrial processes, such as the Haber process for making ammonia. The Understanding Reversible Reactions notes cover this in full.
What units is concentration measured in?
The concentration of a solution is measured as mass per unit volume, in g/dm³ or g/cm³. The Calculating Mass of Solute in Solutions notes cover this in full.