This unit is expiring
The expiry date of this unit is 31/07/2026.


Access to HE
Level 3
Unit No:
Guided learning hours:
Not available

Qualification Grading Type


Grade Descriptors

  • GD2-Application of knowledge
  • GD3-Application of skills
  • GD7-Quality

Unit Learning Outcomes


Understand the mole concept.

Assessment Criteria

  • 1.1
    Apply the mole concept to describe quantity of substance.
  • 1.2
    Calculate a mass from a number of moles and vice versa.


Understand the energetics of chemical reactions.

Assessment Criteria

  • 2.1

    Explain that reactions are accompanied by an energy change.

  • 2.2
    Draw reaction profile diagrams to differentiate between exothermic and endothermic reactions.
  • 2.3
    Calculate enthalpy changes using bond energies.


Understand the factors affecting kinetics.

Assessment Criteria

  • 3.1
    Describe the factors influencing reaction rate.
  • 3.2
    Explain the effect of temperature concentration and surface area using the collision theory.
  • 3.3
    Define activation energy and explain its influences on rate.
  • 3.4
    Describe and explain the action of a catalyst.
  • 3.5
    Use the Maxwell-Boltzman distribution to explain the effect of a catalyst.
  • 3.6
    Explain the effect of mechanism on rate.


Be able to apply equilibrium concepts to chemical reactions.

Assessment Criteria

  • 4.1
    Explain the characteristics of the equilibrium state.
  • 4.2
    Define and apply Le Chaterliers principle.
  • 4.3
    Explain on a simple level the changes that occur when an equilibrium is disturbed.