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Le Chateliers Principle Flashcards

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6283403587Le Chateliers Principlestates that a change in the factors that govern the chemical equilibrium of a system will cause the system to respond in a manner that counteracts the change to bring whatever has been changed by the stress(the reaction quotient or equilibrium constant) back into equality with one another.0
6283425657Way Chemical equilibrium can be disruptedChange in temperature Change in concentration of reactant or product Change in volume or pressure (Note: catalysts DO NOT affect the equilibrium position, only the speed)1
6283454360Effect of temperatureONLY temperature will effect the value of K Must know whether the reaction is exothermic or endothermic2
6283531794If energy is added to a system....(when it is written as a product)......the result would favor the formation of the reactants or the endothermic reaction3
6283540549If energy is taken away......(when it is written as a product)......the result would favor the formation of the products or the exothermic reaction4
6283553912If energy is added.....(when it is written as a reactant).....the result would favor the formation of the products, or endothermic reaction5
6283564156If energy is taken away.......(when it is written as a reactant).....the result would favor the formation of the reactants, or exothermic reaction6
6283576694Effect of concentration(WILL NOT affect the value of K)If the concentration of the reactants is decreased, the result would favor the formation of the reactants(REACTANTS SHIFTS BACKWARDS)7
6283613528If the concentration of the reactants is increased.........the result would favor the formation of the products(REACTION SHIFTS FORWARD)8
6283623568If the concentration of the product is decreased....the result of would favor the formation products(REACTION SHIFTS FORWARD)9
6283640248If the concentration of the product is increased....the result would favor the formation of the reactants(REACTION SHIFTS BACKWARD)10
6283651570Effect of the volume or pressure change(Will not affect the value of K)Must count the number of mole of gas reactants and gas products to accurately predict the direction11
6283679184If the volume increases(pressure decreases)....the system will shift to the side with the greatest number of gas molecules in order to increase the pressure12
6284123252If the volume decreases(pressure increases).......the system will shift to the side with the least number of gas moles in order to decrease pressure13
6284184277Observing Shifts in equilibriumColor change Change in pH14
6284194120Manipulating Conditions to Optimize Yeildcompromise must be reached in order to achieve decent yields in a cost-effective and timely manner15

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