Chemistry

Find free online Chemistry Topics covering a broad range of concepts from research institutes around the world. Chemical Equilibrium Similar to physical processes chemical reactions gradually attain a state of equilibrium after sometime. Let us consider a general reversible reaction. A + B ⇄ C + D Initially only A and B are present Soon, a few molecules of the products … [Read more...] about Chemical Equilibrium

Find free online Chemistry Topics covering a broad range of concepts from research institutes around the world. Physical and Chemical Equilibrium There are different types of equilibrium. For example, if two persons with same weight sit on opposite sides of a see-saw at equal distance from the fulcrum, then the see-saw will be stationary and straight and it is said to be in … [Read more...] about Physical and Chemical Equilibrium

Find free online Chemistry Topics covering a broad range of concepts from research institutes around the world. Introduction of Equilibrium In our daily life, we observe several chemical and physical changes. For example, a banana gets ripened after few days, silver gets tarnished in few months and iron gets rusted slowly. These processes proceed in one direction. Now let … [Read more...] about Introduction of Equilibrium

Find free online Chemistry Topics covering a broad range of concepts from research institutes around the world. Third Law of Thermodynamics The entropy of a substance varies directly with temperature. Lower the temperature, lower is the entropy. For example, water above 100° C at one atmosphere exists as a gas and has higher entropy (higher disorder). The water molecules are … [Read more...] about Third Law of Thermodynamics

Find free online Chemistry Topics covering a broad range of concepts from research institutes around the world. Gibbs Free Energy One of the important applications of the second law of thermodynamics is to predict the spontaneity of a reaction under a specific set of conditions. A reaction that occurs under the given set of conditions without any external driving force is … [Read more...] about Gibbs Free Energy