Physical chemistry II with lab

A.Y. 2021/2022
12
Max ECTS
128
Overall hours
SSD
CHIM/02
Language
Italian
Learning objectives
The aim of the course is to study the basic principles of chemical kinetics, of catalysis and of electrochemistry.
Expected learning outcomes
The student will acquire knowledge of chemical kinetics and electrochemistry, and will be able to apply them in simple laboratory experiments.
Course syllabus and organization

Single session

Responsible
Lesson period
First semester
All lectures and numerical execises will be recorded and made available to the students, according to the official time table.
All lectures of the Laboratory course, 32 hours, are held at a distance in asynchronous mode, by uploading packages of 20-25 minute lessons on the ARIEL website. Synchronous explanation meetings (max 2 hours / week) will be scheduled considering the canonical timetable of the other frontal lessons held in synchronous mode.
The four laboratory experiences will be held in presence.
The four lab experiences will be recorded in advance so that all students, even those who cannot / will not come, can see the experimental execution.
Each student will be involved in at least two experiences in presence (four afternoons equal to 16 laboratory hours). Considering that among the objectives of the course there is the critical elaboration of experimental data, all students will receive experimental data for the experiences that will not be held in presence. In this way, all students will elaborate data of all 4 laboratory experiences.
Prerequisites for admission
Basic knowledge of Mathematics and Physics, acquired during the first year courses of the Bachelor degree in Chemistry, and of Chemical Themodynamics, acquired in the Laboratory of Physical Chemistry I, second year of the Bachelor degree in Chemistry.
Assessment methods and Criteria
During the oral examination the student will be asked to discuss all topics presented during the lectures and to solve exercises of chemical kinetics and problems related to the course program. His/her ability to comment and discuss the equations and the graphs presented during the lectures will also be verified.
For the lab module the student is asked:
- a written report about laboratory experiences and the data collected will be required, and it will be evaluated before the oral exam;
- the student will be asked to illustrate and comment on an experience carried out in the laboratory;
- the ability to present, comment and discuss the phenomena and equations presented in class will be tested;
- the student will be asked to discuss the graphs showed during the lessons, in relation to the electrochemical phenomena that determine them;
- the ability to solve exercises and problems related to the topics covered will be required
Module: Physical chemistry II
Course syllabus
Chemical Kinetics: Rate expressions and rate constants. First order, second order, zero order reactions. Parallel, consecutive and opposite reactions, the steady state approximation; the reaction mechanism, the rate determining step.
Temperature effects on the reaction rates: the Arrhenius equation, the collisions theory for bimolecular and unimolecular reactions; the transition state theory, potential energy surfaces, the Eyring equation, the activation parameters.
Acid-base and enzymatic catalysis. Heterogeneous catalysis: adsorption, the Langmuir-Hishelwood mechanism. Chain reactions, explosive reactions. Kinetic aspects of photoinduced reactions and of photocatalysis.
The thermodynamic description of mixtures. The basis of chemical thermodynamic. Non ideal behavior, fugacity. Phase transitions: phase stability, phase diagrams. The thermodynamics of mixing; ideal, ideal-dilute and real solutions. The activity of the solvent and of the solute. The colligative properties. Phase diagrams of binary systems: temperature-composition diagrams, liquid-liquid phase diagrams, liquid-solid phase diagrams.
Molecular interactions. Electric properties of molecules: electric dipole moments, polarizability, polarization. Interactions between dipoles, repulsive and total interactions.
Teaching methods
Recorded lectures with the aid of projections. Solving numerical exercises.
Teaching Resources
- "Cinetica Chimica e Catalisi", lectures notes written in Italian by Elena Selli
- P. Atkins and J. De Paula. "Atkins' Physical Chemistry - 9th edition". Oxford University Press.
Module: Laboratory of physical chemistry II
Course syllabus
The course contents reflect the objectives and learning outcomes:
- thermodynamics of the galvanic cell;
- the Volta, surface and Galvani potentials; the electrochemical potential; formation of the electric double layer. The double layer models of Helmholtz, Guy-Chapmann and Stern;
- Debye Huckel's limit law;
- Electrochemical kinetics: Butler Volmer equation and Tafel equation;
- The limiting current density;
- Introduction to Pourbaix diagrams.

Laboratory experiences
· Kinetics of acidic hydrolysis of an ester;
· Kinetics of the Clock reaction;
· Enzymatic kinetics;
· Kinetics of the electrochemical oxygen reduction reaction on the rotating disk electrode;
· Kinetics of the bromination of a ketone
Teaching methods
Recorded lectures with the aid of projections and supervision of students' laboratory practice.
Teaching Resources
Power Point presentations showed and discussed during the lesson will be available on the ARIEL platform.
Recommended texts:
- J.O.M. Bockris, A.K.N. Reddy "Modern Electrochemistry - 2A" Kluwer Academic Publishers;
- J Atkins. "Atkins' Physical Chemistry" - W. H. Freeman and Company New York.
Module: Laboratory of physical chemistry II
CHIM/02 - PHYSICAL CHEMISTRY - University credits: 6
Laboratories: 48 hours
Lessons: 24 hours
Shifts:
Corso A
Professor: Vertova Alberto
Corso B
Professor: Longhi Mariangela
Module: Physical chemistry II
CHIM/02 - PHYSICAL CHEMISTRY - University credits: 6
Practicals: 16 hours
Lessons: 40 hours
Professor(s)
Reception:
Wednesday 14-16; Friday 14-16
Dipartimento di Chimica - sezione di Elettrochimica 2nd floor