chap-15-2011W-a

# 082 l atmmol k homogeneous equilibrium why

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Unformatted text preview: a + b) R = 0.082 L ⋅ atm/mol ⋅ K Homogeneous Equilibrium Why equilibrium constants are reported without units? Why are The equilibrium constant is not related to the kinetics of a reaction as well as the thermodynamics of the process. K ∼ a ctivities c o n cen tratio n s K ∼≠ p artial p ressu re In a n id e a l m ixtu re : [C a ] [C A ] = a referen c e co n cen tratio n 1M PA PA PA = = = a referen c e p re ssu re 1 atm 100kPa A a ctivity = A a ctivity “Ion Pairing” F o r p u re so lid : A a ctivity ( so lid ) = 1 F o r p u re liq u id : A a ctivity ( liq u id )= 1 A ctivities o f ch em ica ls h a ve n o u n it ! Homogeneous Equilibrium Homo In aqueous solution: aA(aq ) + bB (aq ) c cC (aq ) + dD (aq ) d [C / c ] ⋅ [ D / c ] K= a b [ A / c ] ⋅[B / c ] c = 1 mol / L without unit In gas phase: aA( g ) + bB ( g ) c cC ( g ) + dD ( g ) d ( pc / p ) ⋅ ( pd / p ) K= ( pa / p ) a ⋅ ( pb / p )b p = 1atm or 100kPa without unit Homogeneous Equilibrium How to express the equilibrium constants for the following reactions base...
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## This document was uploaded on 02/26/2014.

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