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Ap Chemistry Equilibrium Flashcards

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11852767526Equilibrium constantk=products-reactants0
11852767527K>1Forward reaction is favored1
11852767528Forward reactionReactants to Products2
11852767529Reverse reactionProducts to reactants3
11852767530K<1Reverse reaction is favored4
11852767531K=1neither reaction is favored5
11852767532Small equilibrium constant means...reactants are favored6
11852767533Large equilibrium constant means...products are favored7
11852767534Kc and Kp have what units?they both have no units, but Kp is calculated using atm and Kc is calculated using molarity8
118527675351 atm760 mmHg and 760 Torr9
11852767536What equation connects Kp and Kc?Kp = Kc(RT)deltaN [delta N= (c+d) - (a+b)]10
11852767537Solids and liquids are...completely omitted from calculations11
11852767538Reaction Quotientmeasures the progress of a reaction relative to equilibrium12
11852767539How is q calculated?Same way as Kc13
11852767540Difference 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
11852767541If the reaction only contains reactants...Q = 015
11852767542If the reaction only contains products...Q = infinity16
11852767543At equilibrium....K = Q17
11852767544Q > Kreactions goes to the left (reactants)18
11852767545Q < Kreaction goes to the right (products)19
11852767546Q = Kreaction is at equilibrium20
11852767547Solubility product constant (Ksp)Measures solubility of a compound21
11852767548Molar solubilitySolubility of a compound in. moles per liter22
11852767549Gibbs free energy equation with KGrxn = -RT lnK At equilibrium G = 023
11852767550When K<1 and Q=1lnK is negative, G is positive, the reaction is spontaneous in the reverse direction24
11852767551When K>1 and Q=1lnK is positive, G is negative, the reaction is spontaneous in the forward direction25
11852767552Le Chateller's Principlewhen a chemical system at equilibrium is disturbed, the system shifts in the direction that minimizes the disturbance26
11852767553Adding product...shifts left27
11852767554Adding reactant...shifts right28
11852767555Removing product...shifts right29
11852767556Removing reactant...shifts left30
11852767557Increasing volume...decrease in pressure and shifts toward the side with the more moles31
11852767558Decreasing volume...increase in pressure and shifts toward the side with the least amount of moles32
11852767559In 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
11852767560In 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
11852767561In 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
11852767562In 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
11852767563Adding a catalyst...DOES NOT change the concentration37
11852767564Adding an inert gas...DOES NOT change the concentration38
11852767565If the reaction is reversedinvert Kc39
11852767566If the reaction is multipliedraise Kc to the power40
11852767567If the reaction is addedmultiply Kc41

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