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July 2015 The Hong Kong Polytechnic University Hong Kong Community College Subject Description Form Subject Code CCN2275 Subject Title Physical Chemistry Level 2 Credit Value 3 Medium of Instruction English Pre-requisite / Co-requisite/ Exclusion Nil Objectives This subject introduces fundamental knowledge and concepts in physical chemistry for thermodynamics and kinetics, and shows some of the key evidence which supports the concepts. This subject also introduces the techniques for practical measurements of samples related to the topics of thermodynamics and kinetics. Intended Learning Outcomes Upon successfully completing this subject, students will be able to: (a) deploy the knowledge learned for exploring the basic principles of thermodynamics. (b) demonstrate an understanding of the fundamental principles of reaction rate theories as well as their contemporary applications. (c) perform basic physical chemistry experiments as well as evaluate, analyse and interpret the effects of external conditions on the experimental equilibrium. (d) identify and solve problems in related areas of physical chemistry and real-life examples. Subject Synopsis/ Indicative Syllabus Thermodynamics System, states, state variables, state/path function, intensive/extensive properties; 1st law: enthalpy of chemical reactions, heat and work, internal energy, adiabatic changes, thermochemistry, calorimetry, the Joule-Thomson effect; 2nd and 3rd laws: criteria for spontaneous change, entropy, Gibbs free energy; Adiabatic, isothermal, isobaric and reversible processes, Carnot cycle and heat engine, Nernst equation, Gibbs energy function and equilibrium constants, phase rule, ClausiusClapeyron equation; Effect of change in state variables on some state/path functions. 1 July 2015 Kinetics Rate laws, rate equations and rate constants, reaction mechanism and elementary reactions; Rate determining steps; Reaction types: opposing reactions, consecutive reactions, parallel reactions, chain reactions. Reaction rate theories: collision and absolute rate theories, activation energy, temperature dependence of reaction rates; Reaction approaching equilibrium, equilibrium constants; Transition state theory, steady-state approximation. Laboratory Techniques Perform basic physical chemistry laboratory techniques and operate various instruments to solve problems on topics discussed and interpret the data obtained. Teaching/Learning Methodology This subject is composed of three parts: lectures, tutorials and laboratory sessions. Lectures will focus on the introduction of thermodynamics, reaction rate equations and theories, and some basic laboratory techniques of physical chemistry. Real-life examples and references will be given to students wherever appropriate. Tutorials will provide students with opportunities to broaden, enlighten and reinforce the general knowledge obtained in lectures. Problem-based activities, classroom feedback, and discussions will be arranged in tutorials to stimulate students’ interest or their awareness of the practical implications of some concepts. Laboratory sessions may also be used to enable students to understand, verify, and apply knowledge developed from lectures via hands-on practice. Assessment Methods in Alignment with Intended Learning Outcomes A variety of assessment tools will be used to develop and assess students’ achievement of the subject intended learning outcomes. Specific assessment methods/tasks % Intended subject learning weighting outcomes to be assessed a b c d Continuous Assessment* 50 Test 25 Assignment 1 12.5 Group Assignment 1 12.5 Final Examination 50 Total 100 *Continuous assessment items and/or weighting may be adjusted by the subject team subject to the approval of the College Programme Committee. To pass this subject, students are required to obtain Grade D or above in both the Continuous Assessment and Final Examination. 2 July 2015 Student Study Effort Expected Class contact Hours Lecture 26 Tutorial 13 Laboratory 6 Other student study effort Self-study 52 Continuous Assessment 36 Total student study effort Reading List and References 133 Recommended Textbook Atkins, P. W., and De Paula, J. (2010). Physical chemistry. (9th ed.), Oxford University Press. References Atkins, P. W., and De Paula, J. (2009). Elements of physical chemistry. (5th ed.), Oxford University Press. Engel, T., Reid, P. and Hehre, W. (2010). Physical chemistry. (2nd ed.), Prentice Hall. Halpern, A. M. and McBane, G. C. (2006). Experimental physical chemistry: A laboratory textbook. (3rd ed.), W. H. Freeman and Company. 3