Module code: ENG2122

Module Overview

This module addresses the essential concepts of Chemical Thermodynamics that are required by Chemical Engineers. Starting from the fundamental laws of thermodynamics, the course builds up to the prediction of equilibrium states for complex reaction mixtures, and vapour-liquid systems that exhibit non-ideal behaviour.

Applied Thermodynamics: This section of the module extends the material covered in the introductory lectures at FHEQ Level 4. Specifically, the use of the First and Second Laws of Thermodynamics to analyse and design simple power and refrigeration cycles is introduced.

Module provider

Chemical and Process Engineering

Module Leader

ALPAY Esat (Chm Proc Eng)

Number of Credits: 15

ECTS Credits: 7.5

Framework: FHEQ Level 5

JACs code: H311

Module cap (Maximum number of students): N/A

Overall student workload

Independent Learning Hours: 106

Lecture Hours: 33

Tutorial Hours: 11

Module Availability

Semester 2

Prerequisites / Co-requisites

Completion of the progression requirements to FHEQ Level 5 of the degree courses in Chemical Engineering, Chemical and Bio-Systems Engineering and Chemical and Petroleum Engineering, or equivalent.

Module content

Indicative content includes:

Chemical Thermodynamics

Work, Heat and the Conservation of Energy

  • Internal energy and the first law of thermodynamics

  • Heat capacity (constant volume; constant pressure)

  • Enthalpy

  • Bomb, differential scanning and flame calorimeters


  • Enthalpy of chemical and physical change

  • Hess’s Law

  • Temperature effects on enthalpy


  • Standard entropies

  • Second and third laws of thermodynamics

  • Entropy of expansion, mixing, heating or cooling

Free Energy

  • Gibbs and Helmholtz energies

  • Gibbs energy of formation and standard reaction

  • Effects of pressure and temperature and Gibbs energy

  • Partial molar Gibbs energy

Phase Behaviour and Ideal Mixtures and Solutions

  • Phase diagrams

  • Phase transition in single component systems

  • Gibbs energy change of mixing

  • Ideal and ideal-dilute solutions

  • Boiling-point elevation; freezing-point depression

Non-Ideal Mixtures and Solutions

  • Activity and activity coefficients

  • Excess Gibbs free energy; predictions for multicomponent mixtures

Chemical Reaction Equilibrium

  • Gibbs free energy and the reaction equilibrium

  • Pressure and temperature effects on reaction equilibrium

Real Gases

  • Compression factor

  • Fugacity

  • Equations of state

Applied Thermodynamics

The Laws of Thermodynamics

  • Introduction to the Carnot Propositions and entropy

  • Thermodynamic diagrams T-h-s

Power and Refrigeration Cycles

  • Rankine cycles and power generation (including process and district heating)

  • Refrigeration and heat pump cycles

  • Gas turbines

  • Revision and summary of pumps, turbines and compressors.

  • Review of sustainable use of energy

Assessment pattern

Assessment type Unit of assessment Weighting
Examination EXAMINATION (2 HOURS) 80

Alternative Assessment

As above.

Assessment Strategy

The assessment strategy is designed to provide students with the opportunity to demonstrate the full range of learning outcomes though the balanced mixture of lecture and tutorial/problem classes coupled with the carefully grades tutorial problems which reflect current industrial practice.

 Thus, the summative assessment for this module consists of:

·         Examination – 80%, 2 hours (LO1 – LO5)

·         Coursework – 20% (L01-L05)

 Formative assessment

·         Open-book class test, 45 minutes  (Chemical Thermodynamics) (LO1, LO2)

·         Online multiple choice self tests (LO4, LO5)

·         HYSYS worksheets for the demonstration of some key Chemical Thermodynamics concepts (LO3, LO4, LO5)


·         Weekly verbal feedback during tutorial classes (LO1 – LO5)

·         Verbal feedback during optional drop-in tutorial classes (LO1 – LO5)

Module aims

  • Provide students with a solid foundation in Chemical Thermodynamics that will enable interpretation and prediction of a range of chemical and physical transformations such as phase changes and chemical reactions, and to underpin and support the associated work in Reaction Engineering and Separation Processes courses.
  • Provide and consolidate understanding and ability to apply the First Law of Thermodynamics to a wide variety of engineering problems
  • Develop a firm grounding in the thermodynamic property of entropy and its use in the analysis of simple processes and cycles including the use of isentropic efficiency.

Learning outcomes

Attributes Developed
1 Calculate the energy changes involved in chemical composition and physical state changes. KC
2 Calculate chemical and phase equilibria for ideal and non-ideal systems from readily available physical property data and state equations. KC
3 Recognise the principles whereby process flow-sheeting programmes use Chemical Thermodynamics to model equilibrium conditions in various unit operations. KC
4 Confidently apply First and Second Law analysis to simple, single component, multiphase processes such as power generation and refrigeration cycles. KCP
5 Interpret the Carnot and isentropic efficiencies and relate these to potential process improvements KCP

Attributes Developed

C - Cognitive/analytical

K - Subject knowledge

T - Transferable skills

P - Professional/Practical skills

Methods of Teaching / Learning

The learning and teaching strategy is designed to:

  • Carefully cover in lectures the necessary fundamental material for Chemical and Applied Thermodynamics, and demonstrate concepts with appropriate (and where possible practical) examples.

  • Allow students adequate time to consolidate learning of Chemical Thermodynamic concepts using a large number of carefully selected tutorial problems and regular formative assessment.

The learning and teaching methods include:

  • Lectures                                 3 hours per week for 11 weeks

  • Tutorials                                 1 hour per week for 11 weeks

  • Independent learning               8.8 hours per week for 12 weeks (average)


Indicated Lecture Hours (which may also include seminars, tutorials, workshops and other contact time) are approximate and may include in-class tests where one or more of these are an assessment on the module. In-class tests are scheduled/organised separately to taught content and will be published on to student personal timetables, where they apply to taken modules, as soon as they are finalised by central administration. This will usually be after the initial publication of the teaching timetable for the relevant semester.

Reading list
Upon accessing the reading list, please search for the module using the module code: ENG2122

Programmes this module appears in

Programme Semester Classification Qualifying conditions
Chemical and Petroleum Engineering BEng (Hons) 2 Compulsory A weighted aggregate mark of 40% is required to pass the module
Chemical Engineering BEng (Hons) 2 Compulsory A weighted aggregate mark of 40% is required to pass the module
Chemical Engineering MEng 2 Compulsory A weighted aggregate mark of 40% is required to pass the module
Chemical and Petroleum Engineering MEng 2 Compulsory A weighted aggregate mark of 40% is required to pass the module

Please note that the information detailed within this record is accurate at the time of publishing and may be subject to change. This record contains information for the most up to date version of the programme / module for the 2019/0 academic year.