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College Science Software BundleCollege Science Bundle: The three college level courses - General Chemistry, General Physics (calculus) and Organic chemistry, bundled together in one package.College Science Software Bundle

High School Science Bundle: The two high school level courses- Introductory Chemistry and General Physics (non- calculus), bundled together into one package. This bundle is very popular with High School and Home School students.Chemistry and Physics Software for High School and Home School


Using multimedia to illustrate Entropy and Avogadro’s constant

Here are a couple of clips where I use multimedia from the physical chemistry book, in the classroom, to explain concepts Continue reading

A look into Gibbs Energy

Conditions for chemical equilibrium
The Gibbs Energy, G is a function of state that provides useful information for deciding whether or not a change of any kind will tend to occur. It is defined as G = HTS where H, T and S are the enthalpy, temperature and entropy. This ubiquitous subject is reviewed in Chapters 3.6 and 3.7 of the Physical Chemistry book. Continue reading

Entropy and the Second Law of Thermodynamics

Spontaneous Process

So far we have learnt from Chapter 2 of the Physical Chemistry book that the First Law of Thermodynamics is essentially the law of conservation of energy, i.e. energy can neither be created nor destroyed but it may change from one form to another. Continue reading

Kinetic law says ‘last will be first’

Chemical Kinetics

Screen grab of interactive animation explaining concept. (Click to enlarge)

Reactions are usually complex events. Bonds are broken, formed, stretched and atoms driven by enthalpy and entropy in their marvelous path. From reactants to products, and vice versa.

Even when a system reaches equilibrium, it is very unusual for compounds to rest peacefully; instead, they will start going back and forth in perpetual motion. Continue reading

A look at Systems, States and Equilibrium – Physical Chemistry ch 1.3

Physical Chemistry - Systems, States, and Equilibrium multimedia clip

Screengrab of interactive multimedia clip from Physical Chemistry textbook (click to enlarge)

In order to understand the workings of a physical process or chemical reaction, a limited area of study must be isolated.  This area is usually described as the system and can be as large or as small as necessary.

Any area not included in the system is considered the surroundings.  Thermodynamics is the study of heat and other forms of energy in both chemical and physical processes in specific systems.

The first law of thermodynamics follows the law of conservation for heat.  Simply stated, heat can not be created or destroyed, merely changed from one form to another.  The second law involves the amount of order involved with a spontaneous reaction in a system. Continue reading

Try our bestselling undergraduate Physical Chemistry courseware

Thermodynamics Module - Physical Chemistry
Thermodynamics module
Chapters 1 to 6 of Physical Chemistry - Laidler, Meiser, Sanctuary

Includes multimedia that opens on relevant pages and allows the student to visualize many of the concepts by varying parameters and plotting different graphs. Things students often have difficulty with, such as isothermal, isobaric, isochoric and adiabatic process, are clearly visualized.

Get it from: Thermodynamics Module - Physical Chemistry

Physical Chemistry - Laidler, Meiser, Sanctuary
Physical Chemistry textbook
by Laidler, Meiser, Sanctuary

This popular Physical Chemistry text book is now available in electronic format. We have preserved much of the material of the former hard copy editions, making changes to improve understanding of the concepts in addition to including some of the recent discoveries in physical chemistry. Many chapters have new sections and the coverage of several chapters has been greatly expanded.

Get it from: Physical Chemistry - Laidler, Meiser, Sanctuary

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