Mars Rover Opportunity Examines Clay Clues in Rock ow.ly/la0lE #physics #chemistry
Here are a couple of clips where I use multimedia from the physical chemistry book, in the classroom, to explain concepts Continue reading

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
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
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