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Unit of study_

CHNG9103: Conservation of Mass and Energy

Semester 2, 2021 [Normal day] - Camperdown/Darlington, Sydney

The students should develop an understanding of and competence in the formulation and solution of material and energy balance problems in engineering; develop competence in using basic flowsheet analysis and appropriate computational tools; improve their group work and problem solving skills; gain an ability to extract a simplified version of a problem from a complex situation. Students will also develop a preliminary understanding in the use of process simulator (e. g. , Hysis) to formulate and solve material and energy problems around simple models of unit operations and recycles. Mass conservation related topics include: unit systems and unit conversions; properties of solids, fluids and gases; mass balance calculations on batch and flow systems; balances on multiple units processes, balances on reactive systems, recycle, bypass and purge calculations; equilibrium compositions of reacting systems; vapour pressure and humidity. Energy conservation includes the following topics: apply the first law of thermodynamics to flow and batch systems in process industries; understand thermodynamic properties such as internal energy, enthalpy and heat capacity; conduct energy balances for sensible heat changes, phase transformations and reactive processes for practical industrial systems; understand the applications of psychrometry, refrigeration, heat of formation and combustion in industry.

Unit details and rules

Unit code CHNG9103
Academic unit Chemical and Biomolecular Engineering
Credit points 6
CHNG1103 OR CHNG5707
Assumed knowledge

University level mathematics, calculus, linear algebra and statistics.

Available to study abroad and exchange students


Teaching staff

Coordinator Raffaella Mammucari,
Lecturer(s) Raffaella Mammucari,
Type Description Weight Due Length
Final exam (Record+) Type B final exam Final exam
open book
45% Formal exam period 1.5 hours
Outcomes assessed: LO1 LO3 LO4 LO5
Assignment group assignment Laboratory report
based on lab practical
10% Multiple weeks 3 pages
Outcomes assessed: LO1 LO2 LO3 LO4 LO5
Skills-based evaluation Literature review
quiz on literature review methodology
5% Week 03
Due date: 27 Aug 2021 at 23:59
1 h
Outcomes assessed: LO1 LO4 LO3
Assignment Assessment 1
take home calculative exercises, formative assessment
10% Week 05
Due date: 10 Sep 2021 at 23:59
Approx. 5 pages
Outcomes assessed: LO1 LO4 LO3
Assignment Literature research
literature research on topic of choice
10% Week 06
Due date: 17 Sep 2021 at 23:59
2 pages
Outcomes assessed: LO1
Assignment Assessment 2
take home calculative exercises, formative assessment
10% Week 08
Due date: 08 Oct 2021 at 23:59
Approx. 5 pages
Outcomes assessed: LO1 LO4 LO3
Assignment Assessment 3
take home calculative exercises, formative assessment
10% Week 12
Due date: 05 Nov 2021 at 23:59
Approx. 5 pages
Outcomes assessed: LO1 LO3 LO4
group assignment = group assignment ?
Type B final exam = Type B final exam ?

Assessment summary

Assignments 1, 2, and 3. Analysis of mass and/or energy balance. Mostly calculative exercises. 

Literature research. A short review of a chemical process. 

Literature research quiz. On-line quiz on aspects of researching, evaluating, and reporting scientific information. 

Lab work/ laboratory report: students will run a practical experiment in teams and will submit a report on the activity. 

Final exam: test on ability to apply knowledge and skills in analysing materials and energy balances.

Detailed information for each assessment can be found on Canvas.

Assessment criteria

The University awards common result grades, set out in the Coursework Policy 2014 (Schedule 1).

As a general guide, a high distinction indicates work of an exceptional standard, a distinction a very high standard, a credit a good standard, and a pass an acceptable standard.

Result name

Mark range


High distinction

85 - 100



75 - 84



65 - 74



50 - 64



0 - 49

When you don’t meet the learning outcomes of the unit to a satisfactory standard.

For more information see

For more information see guide to grades.

Late submission

In accordance with University policy, these penalties apply when written work is submitted after 11:59pm on the due date:

  • Deduction of 5% of the maximum mark for each calendar day after the due date.
  • After ten calendar days late, a mark of zero will be awarded.

Academic integrity

The Current Student website  provides information on academic integrity and the resources available to all students. The University expects students and staff to act ethically and honestly and will treat all allegations of academic integrity breaches seriously.  

We use similarity detection software to detect potential instances of plagiarism or other forms of academic integrity breach. If such matches indicate evidence of plagiarism or other forms of academic integrity breaches, your teacher is required to report your work for further investigation.

You may only use artificial intelligence and writing assistance tools in assessment tasks if you are permitted to by your unit coordinator, and if you do use them, you must also acknowledge this in your work, either in a footnote or an acknowledgement section.

Studiosity is permitted for postgraduate units unless otherwise indicated by the unit coordinator. The use of this service must be acknowledged in your submission.

Simple extensions

If you encounter a problem submitting your work on time, you may be able to apply for an extension of five calendar days through a simple extension.  The application process will be different depending on the type of assessment and extensions cannot be granted for some assessment types like exams.

Special consideration

If exceptional circumstances mean you can’t complete an assessment, you need consideration for a longer period of time, or if you have essential commitments which impact your performance in an assessment, you may be eligible for special consideration or special arrangements.

Special consideration applications will not be affected by a simple extension application.

Using AI responsibly

Co-created with students, AI in Education includes lots of helpful examples of how students use generative AI tools to support their learning. It explains how generative AI works, the different tools available and how to use them responsibly and productively.

WK Topic Learning activity Learning outcomes
Week 01 Introduction to the course Units and dimensions Lecture and tutorial (4 hr) LO3 LO5
Week 02 Engineering Calculations Data representation and analysis Lecture and tutorial (4 hr) LO3 LO4 LO5
Week 03 Flow-sheeting Process Variables Lecture and tutorial (4 hr) LO3 LO4 LO5
Week 04 Mass balances on non reactive systems Lecture and tutorial (4 hr) LO3 LO4
Week 05 Mass balances on non reactive systems Lecture and tutorial (4 hr) LO3 LO4
Week 06 Mass balances on reactive systems Lecture and tutorial (4 hr) LO3 LO4 LO5
Week 07 Mass balances on reactive systems Lecture and tutorial (4 hr) LO3 LO4 LO5
Week 08 Mass balances on reactive systems Lecture and tutorial (4 hr) LO3 LO4 LO5
Week 09 First law of thermodynamics Reference states Energy balance calculations Lecture and tutorial (4 hr) LO3 LO4 LO5
Week 10 Energy balance non-reactive systems Lecture and tutorial (4 hr) LO3 LO4 LO5
chemical reaction in mixed flow reactors Practical (1 hr) LO1 LO2 LO4
Week 11 Energy balances for reactive processes Lecture and tutorial (4 hr) LO3 LO4 LO5
chemical reaction in mixed flow reactors Practical (1 hr) LO1 LO2 LO4
Week 12 Energy balances for reactive processes Lecture and tutorial (4 hr) LO3 LO4 LO5
Week 13 recap and practice exam Lecture and tutorial (4 hr) LO3 LO4 LO5

Study commitment

Typically, there is a minimum expectation of 1.5-2 hours of student effort per week per credit point for units of study offered over a full semester. For a 6 credit point unit, this equates to roughly 120-150 hours of student effort in total.

Required readings

R.M. Felder and R.W. Rousseau, Elementary Principles of Chemical Processes, Wiley.

Learning outcomes are what students know, understand and are able to do on completion of a unit of study. They are aligned with the University's graduate qualities and are assessed as part of the curriculum.

At the completion of this unit, you should be able to:

  • LO1. demonstrate written and communication skills
  • LO2. work as an effective member of an engineering team
  • LO3. identify key aspects of processes carried out in today's chemical and process industries, and understand applications of scientific knowledge to engineering work
  • LO4. set up and calculate energy and material balances for a variety of commonly encountered engineering scenarios
  • LO5. apply a logical approach for solving a variety of complex engineering problems.

Graduate qualities

The graduate qualities are the qualities and skills that all University of Sydney graduates must demonstrate on successful completion of an award course. As a future Sydney graduate, the set of qualities have been designed to equip you for the contemporary world.

GQ1 Depth of disciplinary expertise

Deep disciplinary expertise is the ability to integrate and rigorously apply knowledge, understanding and skills of a recognised discipline defined by scholarly activity, as well as familiarity with evolving practice of the discipline.

GQ2 Critical thinking and problem solving

Critical thinking and problem solving are the questioning of ideas, evidence and assumptions in order to propose and evaluate hypotheses or alternative arguments before formulating a conclusion or a solution to an identified problem.

GQ3 Oral and written communication

Effective communication, in both oral and written form, is the clear exchange of meaning in a manner that is appropriate to audience and context.

GQ4 Information and digital literacy

Information and digital literacy is the ability to locate, interpret, evaluate, manage, adapt, integrate, create and convey information using appropriate resources, tools and strategies.

GQ5 Inventiveness

Generating novel ideas and solutions.

GQ6 Cultural competence

Cultural Competence is the ability to actively, ethically, respectfully, and successfully engage across and between cultures. In the Australian context, this includes and celebrates Aboriginal and Torres Strait Islander cultures, knowledge systems, and a mature understanding of contemporary issues.

GQ7 Interdisciplinary effectiveness

Interdisciplinary effectiveness is the integration and synthesis of multiple viewpoints and practices, working effectively across disciplinary boundaries.

GQ8 Integrated professional, ethical, and personal identity

An integrated professional, ethical and personal identity is understanding the interaction between one’s personal and professional selves in an ethical context.

GQ9 Influence

Engaging others in a process, idea or vision.

Outcome map

Learning outcomes Graduate qualities

This section outlines changes made to this unit following staff and student reviews.

The course has been modified to adapt to a 13 weeks semester.

Students that miss an assessmnet or experience circumstances inpacting their preparation or performance in an assessment will have to apply for special consideration. Marks adjustments or replament tests will be conducted only if the special consideration request will be granted.

More information related to this unit will be provided in class.


The University reserves the right to amend units of study or no longer offer certain units, including where there are low enrolment numbers.

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