Factors Affecting Equilibria
Chapter Name : Equilibrium |
Sub Topic Code : 102_11_07_09_04 |
Topic Name : Factors Affecting Equilibria |
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Sub Topic Name : Effect Of Temperature Change |
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Introduction
• In general, the temperature dependence of the equilibrium constant depends on the sign of ?H for the reaction. • The equilibrium constant for an exothermic reaction (negative ?H) decreases as the temperature increases. • The equilibrium constant for an endothermic reaction (positive ?H) increases as the temperature increases.
Pre-Requisites:
Reaction, equilibrium constant, reaction quotient, inert gas
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
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| Le Chatelier’s principle | • Le Chatelier’s principle states that a “change in any of the factors that determine the equilibrium conditions of a system will cause the system to change in such a manner so as to restore the balance.” This is applicable to all physical and chemical equilibria. |
Learning aids / Gadgets
| Gadgets | How it can be used |
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| See saw | • To obtain balance both sides should have equal weights. |
Places to visit :
Playground.
Practical examples around us
| Examples | Explainations |
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What you learn in Theory:
• In general, the temperature dependence of the equilibrium constant depends on the sign of ?H for the reaction. • The equilibrium constant for an exothermic reaction (negative ?H) decreases as the temperature increases. • The equilibrium constant for an endothermic reaction (positive ?H) increases as the temperature increases.
What you learn in Practice:
• In general, the temperature dependence of the equilibrium constant depends on the sign of ?H for the reaction. • The equilibrium constant for an exothermic reaction (negative ?H) decreases as the temperature increases. • The equilibrium constant for an endothermic reaction (positive ?H) increases as the temperature increases.