Review Sheet for Physical Chemistry I 330, Exam One, Lycoming College, Fall 2005, Dr. Mahler

 

Chapter One (all sections) States of gases; p, V, T, n and how to measure these; Ideal Gas law and laws in it (Boyle's, Charles', Dalton's, Avogadro's); Zeroth Law of Thermodynamics; Real gases - repulsive and attractive forces, compression factor; other equations of state (van der Waals, virial); critical point and constants (p, V, T); principle of corresponding states.

Chapter 1: Exercises 1.4, 6 (Boyle’s Law), 8 (Ideal Gas Law), 11 (Density of gases, IGL), 13 (Dalton’s Law of Partial Pressures, mole fractions, IGL), 16 (van der Waals, IGL), 19 (part a) (Molar Volume, IGL), 22 (Dalton’s, IGL), 25 (Principle of Corresponding States).

 

Chapter Twenty Four (section 1) Molecular motion in gases Kinetic Theory of Gases; Maxwell distribution and types of molecular speed; collision- diameter, -frequency, -cross section, and mean-free path.
Chapter 24: Exercises 24.4 (mean speed), 5 (mean speed, mean free path, collision frequency), 7 (mean free path). Note 8 and 9 are also good practice.  

 

Chapter Two (all sections) Definitions basic to Thermodynamics (system, surroundings, open, closed, isolated, energy, work, heat, diathermic, adiabatic, exothermic, endothermic, etc.); First Law of Thermodynamics and internal energy (U); State functions; Expansion work, types (free, (isothermal) reversible, against constant pressure); Reversible vs. irreversible processes and equilibrium; Calorimetry and thermochemistry; Enthalpy (heat at constant pressure), relation to U and temperature dependence; Heat capacities at constant pressure and volume; adiabatic changes, work, P,V, T; standard enthalpy changes and Hess' law, thermochemical equations; Standard enthalpies of formation; stoichiometric numbers; Kirchoff's law and enthalpy temperature dependence.

Chapter 2: Exercises 2.6 (pV work), 7 (work and q, ΔU, ΔH), 8 (isochoric heat), 12 (pV work of a reaction), 13 (heat of transition), 16 (adiabatic rev. work), 23, 27 (adiabatic w, q, ΔU, ΔH, ΔT), 32 , 37, 39 (Hess’ Law, ΔH of formation), 45 (Born-Haber cycle – more thermochemical equations).  

 

Chapter Three (all sections) State functions and exact differentials; partial derivatives and their properties; partial derivative properties for all systems and for ideal gases, and their relations (heat capacities CP and CV, internal pressure πT, expansion coefficient α, isothermal compressibility κT, (isothermal) Joule-Thomson coefficient μ and μT, and inversion temperature); temperature dependence of enthalpy.

Chapter 3: Exercises 3.13, 18 (Joule-Thomson coefficient).