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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Understand applications of Physical Chemistry in a processing environment 
SAQA US ID UNIT STANDARD TITLE
244089  Understand applications of Physical Chemistry in a processing environment 
ORIGINATOR
Chemical Industries SGB 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Manufacturing and Assembly 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 4  NQF Level 04  6 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
Learners who demonstrate competence as described in the outcomes of this unit standard will be able to understand the applications of physical chemistry in a processing environment.

A person credited with this unit standard is able to:
  • Explain the relationship between the pressure and volume of a gas in terms of scientific principles.
  • Explain the relationship between the temperature and pressure of a gas in terms of scientific principles.
  • Explain the general gas equation in terms of scientific principles.
  • Describe a model for the behaviour of liquids.
  • Explain the concept of solutions. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    Description of required skills:
  • National Certificate Chemical Operations at NQF Level 3 or equivalent, including communication and mathematical literacy, at NQF Level 3. 
    		•

    UNIT STANDARD RANGE 
    The context of this unit standard includes a complete process, from the point of receiving a commodity raw material to the point of supplying a commercially saleable product.

    The level assigned to this unit standard is appropriate because the process requires a wide range of cognitive skills and offers a considerable choice of solutions. A broad knowledge base incorporating some theoretical concepts, analytical interpretation of information, informed judgement and a range of sometime innovative responses to concrete but often unfamiliar problems are employed. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Explain the relationship between the pressure and volume of a gas in terms of scientific principles. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The kinetic theory of matter, as it pertains to gases, is described in terms of particle theory. 

    ASSESSMENT CRITERION 2 
    The relationship between the volume and the pressure of a gas (Boyle's law) is explained using scientific symbols and terminology. 

    ASSESSMENT CRITERION 3 
    Graphical representations of Boyle's law can be drawn on graph paper. 

    ASSESSMENT CRITERION 4 
    Calculations based on Boyle's law can be performed in accordance with specified requirements. 

    ASSESSMENT CRITERION 5 
    Applications based on Boyle's law are identified and the operating principles explained using practical process examples. 

    SPECIFIC OUTCOME 2 
    Explain the relationship between the temperature and pressure of a gas in terms of scientific principles. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Standard temperature and pressure is explained according to scientific definition. 

    ASSESSMENT CRITERION 2 
    The relationship between the temperature and the pressure of a gas (Charles' law) is explained using scientific symbols and terminology. 

    ASSESSMENT CRITERION 3 
    Calculations based on Charles' law can be performed in accordance with specified requirements. 

    ASSESSMENT CRITERION 4 
    Applications based on Charles' law are identified and the operating principles explained using practical process examples. 

    SPECIFIC OUTCOME 3 
    Explain the general gas equation in terms of scientific principles. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The relationship between temperature, pressure and volume of a gas (General gas equation) is explained using scientific concepts and terminology. 

    ASSESSMENT CRITERION 2 
    Explain the ideal gas model and non-ideal gas behaviour. 

    ASSESSMENT CRITERION 3 
    The gas constant and molar gas volume is explained using scientific concepts and terminology. 

    ASSESSMENT CRITERION 4 
    Calculations based on the general gas equation can be performed in accordance with specified requirements. 

    ASSESSMENT CRITERION 5 
    Applications based on the general gas equation are identified and the operating principles explained using practical process examples. 

    SPECIFIC OUTCOME 4 
    Describe a model for the behaviour of liquids. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The kinetic theory of matter, specifically as it describes the behaviour of liquids, is described in terms of particle theory. 

    ASSESSMENT CRITERION 2 
    Properties used to describe the physical behaviour of liquids are defined and described in accordance with specified requirements. 
    ASSESSMENT CRITERION RANGE 
    Properties may include:
  • Density/specific gravity (sg).
  • Surface tension.
  • Viscosity.
  • Boiling point.
  • Freezing point.
  • Vapour pressure.
     
    		•

    ASSESSMENT CRITERION 3 
    The principles of vapour-liquid equilibrium are described using scientific terminology and process examples. 

    ASSESSMENT CRITERION 4 
    The principles of vapour pressure are explained using scientific terminology and process examples. 

    ASSESSMENT CRITERION 5 
    Applications based on vapour-liquid equilibrium and vapour pressure are identified and the operating principles explained using practical process examples. 

    SPECIFIC OUTCOME 5 
    Explain the concept of solutions. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Elementary concepts pertaining to solutions are described in scientific terms. 

    ASSESSMENT CRITERION 2 
    The nature of ions in solution is explained in scientific terms. 

    ASSESSMENT CRITERION 3 
    The impact of different concentrations of one or more substances in solutions. 

    ASSESSMENT CRITERION 4 
    The factors influencing the boiling point of solutions are described in scientific terms. 

    ASSESSMENT CRITERION 5 
    Applications based on the concept of solutions are identified and the operating principles explained using practical process examples. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • An assessor, accredited with a relevant NQF 4 or higher qualification, will assess the learner's competency.
  • Only an assessor with at least three years experience in a process operation will assess the learner's competency.
  • Anyone assessing a learner or moderating the assessment of a learner against this Qualification must be registered as an assessor with the relevant ETQA. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    The qualifying learner understands and is able to:
  • Explain the relationship between the pressure and volume of a gas in terms of scientific principles.
  • Explain the relationship between the temperature and pressure of a gas in terms of scientific principles.
  • Explain the general gas equation in terms of scientific principles.
  • Describe a model for the behaviour of liquids.
  • Explain the concept of solutions. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    The learner is able to identify and solve problems in which responses display that responsible decisions, using critical and creative thinking, have been made.

    Refer to all Specific Outcomes. 

    UNIT STANDARD CCFO ORGANISING 
    The learner is able to organise and manage himself and his activities responsibly and effectively.

    Refer to all Specific Outcomes. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information.

    Refer to all Specific Outcomes. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively by using mathematical and/or language skills in the modes of oral and/or written presentations by:
  • Communicating with plant operating personnel when settings are changed to reflect different process requirements.
  • Interpreting screen schematics when using the system.

    Refer to the following Specific Outcome/s:
  • Explain the relationship between the pressure and volume of a gas in terms of scientific principles.
  • Explain the relationship between the temperature and pressure of a gas in terms of scientific principles.
  • Explain the general gas equation in terms of scientific principles. 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically, showing responsibility towards the environment and health of others when:
  • Using technology responsibly during the control of a process.

    Refer to all Specific Outcomes. 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems.

    Refer to all Specific Outcomes. 

    UNIT STANDARD CCFO CONTRIBUTING 
    Contribute to the full personal development of each learner and the social and economic development of the society at large.

    Refer to all Specific Outcomes. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  78529   Further Education and Training Certificate: Chemical Operations  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  As per Learning Programmes recorded against this Qual 
    Core  61949   Further Education and Training Certificate: Pulp and Paper Operations  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2015-06-30  FPMSETA 
    Elective  57887   Further Education and Training Certificate: Welding Application and Practice  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  As per Learning Programmes recorded against this Qual 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.