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Sunday, March 3, 2013

Download HSEB Notes of Chemistry freely for Class 10(SLC), 11, 12 | The Free High School Science Texts: A Textbook for High School Students Studying Chemistry

CHEMISTRY | E-BOOK | EXTRA REFERENCE
THE FREE HIGH SCHOOL SCIENCE TEXTS : A TEXT BOOK FOR HIGH SCHOOL STUDENTS STUDYING CHEMISTRY
CLASS : 10, 11, 12
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This file contain Notes of Class 10, 11, 12 studying Chemistry

Le Chatelier's principle
Le Chatelier's Principle helps to predict what a change in temperature, concentration or pressure will have on the position of the equilibrium in a chemical reaction. It states: When the equilibrium of a closed system is disturbed, the equilibrium will shift to cause the opposite e®ect and so cancel the change. In other words the system will try to get back to equilibrium. Concentration: If the concentration of a substance is increased, the equilibrium will shift so that this concentration decreases. Since Kc is ¯xed for a eaction at a particular temperature, if [reactant] were increased then Le Chatelier would want to shift the equilibrium to decrease [reactant].  

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