This accessible textbook covers all of the underlying physics required for a chemistry degree, and does so by referring to chemically important and familiar examples and problems which students of chemistry will immediately readily relate to. The book is divided into 4 sections as follows:
Section 1: Introduction
The book begins with a section on units and dimensions. This includes an introduction to quantity calculus and the SI system, and emphasizes the importance of including units in calculations. Simple methods of reducing quantities to base units and of converting between unit systems are presented. This section concludes with the powerful method of dimensional analysis, and scaling methods.
Section 2: Classical mechanics
This section starts with a chapter on forces, including the ideas of velocity and momentum. The concepts of kinetic energy and heat are introduced. The discussion is then extended to cover energy. There follows a short chapter on harmonic motion, which is essentially a detailed example of the relationships between force, energy, and the solution of the equations of motion. The next chapter starts with an elementary analysis of a particle on a circular orbit, and introduces the rotational analogues of linear mechanics, moment of inertia, angular velocity and momentum, centripetal force and torque. In addition to giving an understanding of these quantities, some more subtle effects such as the centrifugal barrier, centrifugal distortion and the Coriolis force are also explained.
Section 3: Electricity and magnetism
This section starts with a statement of Coulomb's law, and the associated electric field: some examples of its application are given, including a brief description of Gauss's law. Many examples of the interaction energies of charges are given, both localized and distributed, including detailed examples of the interconversion of potential and kinetic energy, e.g. in a mass spectrometer, and a presentation of the interaction energy of two dipoles. This section continues with a description of electric current as charge in motion, and an explanation of the relationship between drift velocity and current. The origin of Ohm's law is discussed, both for electronic and ionic conduction. The next chapter deals with magnetism and examples of the magnetic force are detailed, notably in the magnetic sector of a mass spectrometer and in a magnetic velocity selector. The Hall effect and its applications are also discussed. This is followed by a short section on how moving charge induced a magnetic field, the idea of a magnetic dipole and its interaction with an external field.
Section 4: Waves
This section deals with the nature of electromagnetic radiation and simple pictures of how it interacts with the charged particles in matter. It also deals with the wave nature of light and the way in which this is demonstrated, i.e. via interference, the two-slit experiment and diffraction. The section also covers the de Broglie relation and matter waves. The concept of total internal reflection is discussed in relation to probing species at interfaces.
This book is an accessible introduction to the physical concepts that are necessary for a proper understanding of chemistry and chemical processes. An invaluable textbook for 1st year undergraduate students in chemistry, it will also provide support throughout their degree, tacking some elements of physics which will be of use in more advanced courses.
The authors have extensive experience of teaching physical chemistry and 1st year undergraduate courses in 'physics for chemistry', and the book will be written in a pedagogical style with worked examples and problem sets. Powerpoints of all figures from the book and additional web based problem sets will be presented online.