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270114 VO Estimation of physical-chemical properties (2020S)

4.00 ECTS (3.00 SWS), SPL 27 - Chemie


Note: The time of your registration within the registration period has no effect on the allocation of places (no first come, first served).


Language: English

Examination dates



Update: 2020-09-17:
Due to illness the lecture is aborted at the current status.

Exams will take place according to prior agreement



A video lecture of the 'polymer' part is available via Moodle.
The 'Fluid properties' part is under preparation. Please wait for further details.

Please follow the news provided on the Moodle pages of this lecture!


Aims, contents and method of the course

During the period of university shut-down caused by the Corona virus the lectures will be given via video. You will find the video files on Moodle. Please ensure that you have access to Moodle.

Part 1: Fluid Properties
The availability of reliable data on material properties is essential in chemical engineering and for industrial process layout. This lecture presents an overview of modern methods for the estimation of several physical-chemical properties in fluids. Pure substances as well as mixtures will be explored. Such estimations methods which are saving costs and allow for quick results compared to detailed measurements are heavily used in chemical engineering and process technology all over the world.

The following topics will be tackled:
Critical and other properties of pure substances
PVT properties of pure substances
PVT properties of mixtures
Selected thermodynamic properties
Properties of ideal gases
Vapour pressure and vaporisation enthalpy
Transport properties

Goal 1:
Understanding of application oriented methods for physical-chemical fluid property estimations

Part 2: Viscoelasticity of Polymers: a glimpse into a complex system

Polymers show an unusual mechanical response when a stress or strain is applied. The response is between solid-like and fluid-like. Therefore, polymers are an example for a complex fluid. In the lecture we will use basic considerations on the intra- and intermolecular interactions of macromolecules to discuss models for the complex viscoelastic properties of polymers and polymer solutions. The viscoelasticity of polymers also gives rise to the formation of glasses. This will also be presented in the lecture. Applying thermodynamic and statistical methods which are known from the Bachelor courses in Physical Chemistry we will study the following topics:
- ideal elastic behaviour of an ion lattice
- relaxation processes
- ideal fluid behaviour in Newtonian fluids
- introduce a model for viscoelastic behaviour
- polymer conformation
- polymer solutions
o dilute
o semi-dilute
- viscoelastic properties of polymers (in solution)
- glass transition of polymers

Goal 2: basic understanding of viscoelastic behaviour and dynamics with focus on macromolecules.

Lectures, problems

Assessment and permitted materials

Update 2020-09-17
Oral exam - in presence or digital via BigBlueButton
(on appointment depending on the Covid situation)
Exams will be according to prior agreement
permitted aid: exclusively calculator

Minimum requirements and assessment criteria

Update 2020-09-17
minimum requirement:
A positive rate requires a solid basic knowledge and understanding of both lecture parts.

evaluation standards:
sehr gut - excellent performance, is able to reproduce (nearly) the entire content of the lecture, shows good understanding of the content and its context
gut - good knowledge of the lecture content with a little shakiness, basic understanding of content and context
befriedigend - middle-rate performance
genügend - clear deficits, but able to reproduce main contents of the lecture with support
nicht-genügend: inacceptable lack of knowledge on the lecture content
A positive rate requires a solid basic knowledge and understanding of both lecture parts.

Examination topics

Update 2020-09-17:
due to the premature ending of the lecture, the exam will be on the polymer part and the first unit on the physical-chemical quantities in fluids only

Topics presented in lecture and material provided in moodle.

Reading list

Lüdecke, Lüdecke: Thermodynamik (only in german available)
Iwao Teroka, Polymer Solutions, Wiley, New York, 2002
P.C. Hiemenz, T.P. Lodge, Polymer Chemistry, 2nd ed.,CRC Press, Boca Raton, 2007

Association in the course directory

MC-3, PC-5, D.4

Last modified: Mo 01.02.2021 14:09