619-0806/01 – Multiphase System (VS)

Gurantor departmentDepartment of Physical Chemistry and Theory of Technological ProcessesCredits6
Subject guarantorprof. Ing. Jana Dobrovská, CSc.Subject version guarantorprof. Ing. Jana Dobrovská, CSc.
Study levelundergraduate or graduateRequirementChoice-compulsory
Year2Semesterwinter
Study languageCzech
Year of introduction2005/2006Year of cancellation2015/2016
Intended for the facultiesFMT, HGFIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
DOB30 prof. Ing. Jana Dobrovská, CSc.
DUD32 doc. Ing. Rostislav Dudek, Ph.D.
PER40 RNDr. Kristina Peřinová
DOC01 Ing. Simona Zlá, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+3

Subject aims expressed by acquired skills and competences

- to use thermodynamic quantities for description of colloidal and coarsely dispersion systems - to describe properties of colloidal systems (kinetic, mechanical, electrical and optical properties) - to observe the stability of colloidal systems and to learn how to influence it - to explain the influence of phase interface on properties of heterogeneous dispersion systems - interfacial tension, contact angle, Laplace-Young equation and Kelvin equation, Gibbs adsorption isotherm, adsorption equilibria - to apply gained theoretical knowledge in routine

Teaching methods

Lectures
Individual consultations
Tutorials
Experimental work in labs

Summary

The course includes physico-chemical properties of colloid systems, surfaces and multiphase systems – classification of dispersions; distribution function of particles size; optical, electrical and molecular-kinetic properties of colloids; structure of colloid particles; physical chemistry of phases interfaces; molecular colloids.

Compulsory literature:

Adamson,A.W. Physical Chemistry of Surfaces, 5th.Edition, New York 1990. ATKINS,P.W. Physical Chemistry. Fourth Edition, Oxford: Oxford University Press, 1993. 995 s. Hunter,R.J. Foundations of Colloid Science, Clarendon press, Oxford 1987. Shaw,D.J.: Introduction to colloid and surface chemistry,3rd Edition, London 1980.

Recommended literature:

Way of continuous check of knowledge in the course of semester

- two calculation exam - five laboratory protocols - active participation in seminars

E-learning

Další požadavky na studenta

No other activities required.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Colloidal systems. Preparation, condensation and dispersion methods, significance in industry and environment, degree of dispersion, particle size distribution functions, experimental determination of particle size distributions. 2. Properties of colloidal systems – optical (Tyndall effect, nefelometry), kinetic (Brownian motion, diffusion of colloidal particles) and electrical (electrophoresis, sedimentation potential, streaming potential, electro-osmosis). 3. Structure of colloidal particles. Electrical charge of colloidal particles, micelle, theory and models of electrical double layer - Helmholtz double layer , Gouy-Chapman double layer, Stern modification of diffuse double layer. Lyophilic and lyophobic colloids, preparation and stability. 4. State changes of colloidal systems. Coagulation, coalescence, sols and gels, xerogels, swelling, thixotropy. Methods for separations colloidal systems. Dialysis, electrodialysis, filtration, electro- ultrafiltration, ultrafiltration, electro-decantation. 5. Coagulation. Coagulation threshold. Coagulation and adsorption. Hardy-Schultz rule, lyotropic (Hofmeister) series. Coagulation kinetics of monodispersed systems. Basic conceptions of coagulation kinetics of polydispersed systems. Swelling kinetics. 6. Sedimentation of colloid particles. Sedimentation in the gravitational field and sedimentation in the centrifugal field. Sedimentation equilibrium and rate. Determination of molar masss weight by sedimentation. 7. Motion of colloidal particles. Stokes' law. Diffusivity and mobility of colloidal particles. Movement of colloidal particles in electric field. 8. Passage of dispersion systems through membranes. Theory of the Donnan membrane equilibrium. Osmotic pressure and viscosity of colloidal systems. Einstein relation. 9. Emulsions - preparation and stability. Emulsifiers, stabilisers of emulsions, their physicochemical action. Foams, preparation, stability and utilization. 10. Surface phenomena. Free surface energy, surface and interfacial tension. Wetting of solid surface by liquid, Laplace equation, contact angle, measurement methods. Interfacial phenomena on interface between two immiscible liquids. Surface films. 11. Adsorption on liquid-liquid and gas-liquid phase interface. Gibbs adsorption isotherm, surface-active and surface-nonactive agents. Flotation principles. 12. Adsorption on liquid-solid and gas-solid phase interface. Adsorption of gases on solid surfaces. Adsorption from solutions on solids. Adsorption isotherms (Freundlich and Langmuir isotherms, BET model of adsorption). Factors affecting adsorption. Adsorption hysteresis. Adsorption kinetics. 13. Angular phase interface. Kelvin’s equation. Dissolution of solid substances. Thermodynamics and kinetics of crystallization from solutions. Distribution coefficient, principles of extraction. 14. Polymer systems. Theory and thermodynamics of macromolecules. Flory-Huggins theory.

Conditions for subject completion

Full-time form (validity from: 2012/2013 Winter semester, validity until: 2015/2016 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 45 (45) 20
                Laboratory work Laboratory work 15  0
                Written exam Written test 28  0
                Other task type Other task type 2  0
        Examination Examination 55 (55) 15
                Written examination Written examination 15  5
                Oral Oral examination 40  10
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2015/2016 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2015/2016 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2015/2016 (N1701) Physics (1702T001) Applied physics P Czech Ostrava 1 Choice-compulsory study plan
2014/2015 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2014/2015 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2014/2015 (N1701) Physics (1702T001) Applied physics P Czech Ostrava 1 Choice-compulsory study plan
2013/2014 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2013/2014 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2013/2014 (N1701) Physics (1702T001) Applied physics P Czech Ostrava 1 Choice-compulsory study plan
2012/2013 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2012/2013 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2011/2012 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2011/2012 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2010/2011 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2010/2011 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2009/2010 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2009/2010 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2008/2009 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2008/2009 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2007/2008 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2007/2008 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2006/2007 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2006/2007 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan
2005/2006 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 2 Compulsory study plan
2005/2006 (N3909) Process Engineering (3911T008) Chemical and Physical Methods of Material Testing P Czech Ostrava 2 Choice-compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner