Pressure
Pressure effects across gas behavior, equilibrium position, and collision-frequency arguments.
This route helps when you keep missing the same type of question across different topics. Use it to combine lesson notes with linked practice and tools in one place.
Notes and Hubs in This Route
- Factors Affecting Rate of Reaction
Explain concentration, gas compression, solid particle size and temperature using collisions; compare rates with fair tests and graphs.
- Gas volumes and reacting amounts
Convert gas volumes into moles at room temperature and pressure, then use a balanced equation to calculate reacting masses and gas volumes.
- Reversible Reactions
Reversible reactions for K324 / 6092: forward and backward reactions, the Haber equation, and interpreting industrial temperature, pressure and catalyst data.
- Dalton’s Law and Partial Pressures (A Level)
Use Dalton’s Law to calculate partial pressures from mole fractions and total pressure, and apply it to gas collections over water.
- The Gaseous State (A Level)
A Level gaseous state notes: pV = nRT calculations, Dalton’s law and partial pressures (including gas over water), and real-gas deviations with unit traps.
- Ideal Gas Model and pV = nRT (A Level)
Use the ideal gas model and pV = nRT with correct units, and solve for moles, molar mass, or gas volume in data questions.
- Real Gases and Deviations (A Level)
Explain when gases deviate from ideal behaviour and link deviations to intermolecular forces and molecular size at very high pressure and very low temperature.
- Dynamic Equilibrium and Le Chatelier (A Level)
Define dynamic equilibrium precisely and use Le Chatelier’s principle to predict shifts when concentration, pressure, and temperature change.
- Equilibrium Constants (Kc and Kp) (A Level)
Write correct Kc and Kp expressions, interpret what magnitude means, and avoid the common expression, units and pressure traps.
- Haber Process (Case Study) (A Level)
Use the Haber process to combine equilibrium + kinetics + economics: conditions, trade-offs, and the exact reasoning examiners want.
- The Chemistry of Cocktails: Layers, Emulsions, and Aroma
Great cocktails rely on solubility, density, temperature, and volatile aromas. Here’s the chemistry behind shaking, stirring, and layering.