Homogeneous and Heterogeneous Catalysts 🎯 Learning outcomes Candidates should be able to: Explain that catalysts can be homogeneous or heterogeneous Describe the mode of action of a heterogeneous catalyst, including adsorption of reactants, bond weakening and desorption of products, for example: (a) iron in the Haber process (b) palladium, platinum and rhodium in the catalytic…
🎯 Learning outcomes After completing this lesson, you should be able to: explain and use the terms catalyst and catalysis explain that, in the presence of a catalyst, a reaction has a different mechanism — one of lower activation energy explain this catalytic effect in terms of the Boltzmann distribution construct and interpret a reaction…
📥 Download 26.1 Rate equations, Order, Rate constants- Notes 📥 Download 26.1 Rate equations, Order, Rate constants- Worksheet
🎯 Learning outcomes After completing this lesson, you should be able to: explain and use the terms rate of reaction, frequency of collisions, effective collisions and non-effective collisions explain qualitatively, in terms of the frequency of effective collisions, the effect of concentration and pressure changes on the rate of a reaction use experimental data to…
5.1 Enthalpy Change — A Level Chemistry Learning outcomes Candidates should be able to: understand that chemical reactions are accompanied by enthalpy changes and these changes can be exothermic (ΔH is negative) or endothermic (ΔH is positive) construct and interpret a reaction pathway diagram, in terms of the enthalpy change of the reaction and of…
25.1 Acids and Bases 🎯 Learning outcomes Candidates should be able to: understand and use the terms conjugate acid and conjugate base define conjugate acid–base pairs, identifying such pairs in reactions define the terms pH, Ka, pKa and Kw mathematically and use them in calculations (Kb and the equation Kw = Ka × Kb will…