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Ap Chemistry Equilibrium Flashcards

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5638787709Equilibrium constantk=products-reactants0
5638787710K>1Forward reaction is favored1
5638787711Forward reactionReactants to Products2
5638787712Reverse reactionProducts to reactants3
5638787713K<1Reverse reaction is favored4
5638787714K=1neither reaction is favored5
5638787715Small equilibrium constant means...reactants are favored6
5638787716Large equilibrium constant means...products are favored7
5638787717Kc and Kp have what units?they both have no units, but Kp is calculated using atm and Kc is calculated using molarity8
56387877181 atm760 mmHg and 760 Torr9
5638787719What equation connects Kp and Kc?Kp = Kc(RT)deltaN [delta N= (c+d) - (a+b)]10
5638787720Solids and liquids are...completely omitted from calculations11
5638787721Reaction Quotientmeasures the progress of a reaction relative to equilibrium12
5638787722How is q calculated?Same way as Kc13
5638787723Difference between K and QQ depends on what STATE of the reaction and K has a given temperature that has only one value that specifies a relative amount14
5638787724If the reaction only contains reactants...Q = 015
5638787725If the reaction only contains products...Q = infinity16
5638787726At equilibrium....K = Q17
5638787727Q > Kreactions goes to the left (reactants)18
5638787728Q < Kreaction goes to the right (products)19
5638787729Q = Kreaction is at equilibrium20
5638787730Solubility product constant (Ksp)Measures solubility of a compound21
5638787731Molar solubilitySolubility of a compound in. moles per liter22
5638787732Gibbs free energy equation with KGrxn = -RT lnK At equilibrium G = 023
5638787733When K<1 and Q=1lnK is negative, G is positive, the reaction is spontaneous in the reverse direction24
5638787734When K>1 and Q=1lnK is positive, G is negative, the reaction is spontaneous in the forward direction25
5638787735Le Chateller's Principlewhen a chemical system at equilibrium is disturbed, the system shifts in the direction that minimizes the disturbance26
5638787736Adding product...shifts left27
5638787737Adding reactant...shifts right28
5638787738Removing product...shifts right29
5638787739Removing reactant...shifts left30
5638787740Increasing volume...decrease in pressure and shifts toward the side with the more moles31
5638787741Decreasing volume...increase in pressure and shifts toward the side with the least amount of moles32
5638787742In an endothermic reaction, increasing temperature means...adding reactant, shifts right, and the value of K increases because the concentration of the products increase and the concentration of the reactants decrease.33
5638787743In an endothermic reaction, decreasing temperature means...removing reactant, shifts left, value of K decreases because the concentration of the products decrease and the concentration of the reactants increase.34
5638787744In an exothermic reaction, increasing temperature means...adding product, shifts left, value of K decreases because concentration of the products decrease and the concentration of the reactants increase.35
5638787745In a exothermic reaction, decreasing temperature means...removing product, shifts right, value of K increases because the concentration of the products increase and the concentration of the reactants decrease.36
5638787746Adding a catalyst...DOES NOT change the concentration37
5638787747Adding an inert gas...DOES NOT change the concentration38
5638787748If the reaction is reversedinvert Kc39
5638787749If the reaction is multipliedraise Kc to the power40
5638787750If the reaction is addedmultiply Kc41

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