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22 Cards in this Set
- Front
- Back
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dynamic equilibrium |
forward and reverse reactions are equal |
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reversible reaction |
something constantly produced and consumed indicated by double arrow with no net change in reactant or product concentrations |
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Elementary reaction |
Rate forward=Rate reverse |
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at start of elementary reaction the chemicals have_______ concentrations |
different |
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In elementary reactions at equilibrium chemical concentrations are __________ but __________ |
different, constant |
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Equilibrium constant Kc |
relationship between chemicals at equilibrium |
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Kc ________depend on initial concentrations because the ratio at equilibrium is always the ________ |
doesnt, same |
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with Kc what two phases are considered? |
gas and aqueous |
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in equilibrium reactants and products must be contained in a _______ system so that they cant escape |
closed |
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in equilibrium reactants and products ___________ change with time |
dont |
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the size of _____ indicates if more products or reactants are present at equilibrium |
Kc |
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is Kc is large >1 equilibrium lies to the ______ |
right |
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if Kc is small <1 equilibrium lies to the ______ |
left |
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Reaction quotient (Q) |
has the same form as K but uses non-equilibrium conditions |
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size of Q in relation to k will indicate __________ the reaction will shift to establish _________ |
direction, equilibrium |
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we are able to calculate K if given ________ concentrations and _________ concentrations of atleast one substane |
initial, equilibrium |
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La chateliers principal |
if a system is at equilibrium and a stress is applied, the system will shift to a new equilibrium position in order to reduce the stress. |
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If a reactant or product is added the reaction shifts to the ___________ of the added substance |
opposite side |
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is a reactant or product is removed the reaction shifts to __________ the removed substance |
replace |
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Le chateliers principal says that if a reaction is endothermic heat is considered a ___________ |
reactant |
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Le chateliers principal says that if a reaction is exothermic heat is considered a __________ |
product |
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Le chateliers principal states that a reaction wats to relieve stress ans therefor shift to the side with ________ gas moles |
fewer |
