Video lecture (English) of C09 Energetics and Rates of Reaction
C09 Energetics and Rates of Reaction
What’s on the Specification
C15. Kinetic/Particle theory
C15.1 Be able to describe the packing and movement of particles in the three states of matter: solid, liquid and gas.
C15.2 Understand the changes to the packing and movement of particles in the following changes of state: freezing, melting, boiling/evaporating, and condensing. Understand that the energy required for these processes is related to the bonding and structure of the substance, including a consideration of intermolecular forces.
C11.1 Understand the concepts of an exothermic reaction, for which $\Delta H$ is negative (negative enthalpy change), and an endothermic reaction, for which $\Delta H$ is positive (positive enthalpy change).
C11.2 Know that if a reversible reaction is exothermic in one direction, it is endothermic in the other direction.
C11.3 Be able to interpret energy level diagrams.
C11.4 Be able to calculate energy changes from specific heat capacities and changes in temperature in calorimetry experiments.
C11.5 Know that bond breaking is endothermic and bond formation is exothermic, and be able to use bond energy data to calculate energy changes.
C10.1 Describe the qualitative effects on a rate of reaction of concentration, temperature, particle size, a catalyst and, for gases, pressure.
C10.2 Know that the rate of reaction can be found by measuring the loss of a reactant or the gain of a product, or by measurement of a physical property over time, and be able to identify which of these measurements can be used in a given situation.
C10.3 Interpret data in graphical form concerning the rate of a reaction.
C10.4 Use collision theory to explain changes in the rate of a reaction.
C10.5 Understand that particles must have sufficient energy when they collide to react, and that this energy is called the activation energy $\left(E_a\right)$. Identify the activation energy on an energy level diagram.
C10.6 Know that catalysts:
a. are not used up in a reaction.
b. are chemically unchanged at the end of a reaction.
c. provide an alternative route (reaction mechanism) with a lower activation energy, and interpret this effect on an energy level diagram.
d. do not affect the position of an equilibrium.
Learning Objectives
- Describe the packing and movement of particles in three states of matter.
- Understand the changes to the packing and movement of particles in the changes of state and the change of energy related to these changes.
- Understand the concepts of exothermic and endothermic reactions and the changes of enthalpy change.
- Know that if a reversible reaction is exothermic in one direction, it is endothermic in the other direction.
- Interpret energy level diagrams
- Be able to calculate energy changes from specific heat capacities and changes in temperature in calorimetry experiments.
- Know that bond breaking is endothermic and bond formation is exothermic, and be able to use bond energy data to calculate energy changes.
- Describe the qualitative effects on a rate of reaction of concentration, temperature, particle size, a catalyst and, for gases, pressure.
- Know that how to measure the rate of reaction.
- Interpret data in graphical form concerning the rate of a reaction.
- Use collision theory to explain changes in the rate of a reaction.
- Understand activation energy and identify it on an energy level diagram.
- Understand the mechanism of catalysts.
Suggested Time
| Task | No. of Questions | Suggested Time |
|---|---|---|
| Examples | 6 | 20 min |
| Quiz | 10 | 30 min |
| Practice A | 16 | 40 min |
| Practice B | 12 | 30 min |
| Total | 44 | approx. 2 hrs |
Video Lecture (English):
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