Mixed-phase Thermodynamics (PC2)

The laboratory course includes experiments that form part of the content of the modules Fundamentals of Thermodynamics (PC1) and Mixed Phase Thermodynamics (PC2). It focuses on the thermodynamic characterization of substance properties or phase equilibrium settings.

Thermochemistry

• Enthalpy of neutralization
• Enthalpy of combustion

Binary mixtures

• Boiling point diagram of binary mixtures
• Melting diagram of binary mixtures

Chemical equilibria

• Buffering capacity
• Dissociation constants of weak acids

EMF of electrochemical cells

• Cell tension (EMF)
• Diffusion potential

Solutions

• Cryoscopy
• Surface tension of surfactant solutions
• Thermal stability of proteins

Pure substances

• Vapour pressure of pure liquids
• Surface tension of pure substances

Fundamentals of Thermodynamics (PC1) and Kinetics (PC3)

The practical course includes experiments from the subject areas of the modules Fundamentals of Thermodynamics (PC1) and Kinetics (PC3). It focuses on the kinetics of motion (conductivity, thermal conductivity, diffusion, viscosity), chemical reaction, kinetics, and adsorption and desorption processes.

Chemical reaction kinetics

• Solvolysis reaction of triphenyl dyes
• Solvolysis kinetics of benzoyl chloride
• Temperature dependence of enzyme kinetics (hydrolysis of urea by urease)

Motion kinetics of charged particles

• Hittorf transfer number (electrolysis in diluted acid)
• Conductivity of strong and weak electrolytes
• Diffusion potential at unspecific and ion-specific membranes

Motion kinetics of uncharged particles

• Viscosity of liquids
• Viscosity of gases

Interfacial phenomena

• Adsorption from liquids (Langmuir and Freundlich adsorption isotherms)
• Adsorption from the gaseous phase (BET adsorption isotherms)