Are you looking for Chapter 7 Electrochemistry of Computer Notes in PDF? You are at the right place. You can download the complete exercises, short questions and MCQs of the unit 7.
It is the most difficult chapter that makes most of the students puzzled. But with a positive and contemplative attitude, you will ace its content efficiently. You must have a deep understanding of oxidation and reduction reactions at this level. Make use of Youtube where you will find many Urdu videos on this topic.
Electrochemical reactions are chemical reactions in which electrons are transferred directly between substances. If a voltage source is applied to an electrolytic cell, it will decompose via an oxidation-reduction reaction. The same cell, reversed, can be used as a galvanic cell, using spontaneous redox reactions to generate electricity. The reactions take place in an electrolyte, usually liquid.
The process is called electrolysis if the reactants involve materials dissolved in a liquid (electrolyte). In chemistry and manufacturing, electrolysis separates chemically bonded elements and compounds by passing an electric current through them. When broken down into ions through electrolysis, this produces chemically pure samples. Electrochemistry is closely related to thermodynamics and electrostatics.
Many processes involve electrical potentials; for example, in photosynthesis, plants use sunlight to produce electrical potential that drives carbon fixation, while animals use food to create the electrical potential that causes muscle contraction.