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SCAN0026 - /‘\‘ Le Chatelier’s Principle If an...

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Unformatted text preview: /‘\‘ Le Chatelier’s Principle If an external stress is applied to a system at equilibrium, the system reacts in such a way as to partially relieve the stress. Addition of Reactant or Product 1. aA + bB cC + dD, '-+ heat exothermic 2. XX + yY + heat zZ + wW endothermic These two systems are at equilibrium. If more A is added to system 1, then more C and D and heat will be produced. If more Bis added to system 1, then more C and D and heat will be produced. If A is removed from system 1, then more A and B will be produced. If B is removed from system 1, then more A and B will be produced. if C is added to system 1, then more A and B will be produced. If D is added to system 1, then more A and B will be produced. If C is removed from system 1, then more C and D will be produced. If D is removed from system 1, then more C and D will be produced. If D is added to system 2, nothing happens. If heat is added to system 1, more A and B are produced. lf heat is removed from system 1, more C and D are produced. If heat is added to system 2, more Z and W are produced. If heat is removed form system 2, more X and Y are produced. If the volume is decreased and thus an increase in pressure results, the system moves to offset the increase in pressure, by moving to the side, producing the species, where there are less gaseous molecules. If the pressure is decreased by an increase in volume, the system moves to form more gaseous molecules, to the side where there are more gaseous molecules. tat/”l” ...
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