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![[Post New]](/templates/default/images/icon_minipost_new.gif) 3 Apr 2008 22:50:56 IST
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PCl5  PCl3 +Cl2 the forward rxh. at const temp is favoured by _ introducing inert gas at constant pressure______________.
why???
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3 Apr 2008 22:57:25 IST
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Hey, Because Delta n >0
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3 Apr 2008 23:37:41 IST
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see mate
delta n = no. of moles of products - no. of moles of reactants
delta n +ive , and an inert gas is added @ const. pressure , the rxn shifts in forward direction
but if inert gas is added @ CONST VOLUME no effect
and if delta n = 0 , then toh there wont be any affect whether u add @ const. pressure or vol.
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4 Apr 2008 19:23:01 IST
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PCl5 = => PCl3 + Cl2
let moles of these be a , b , c respectively at equilibrium and volume of the mixture be V
then K for the reaction is = bc/ aV
on adding inert gas at constant pressure volume increases
as K remains constant b, c should also increase
so the reaction moves in forward reaction
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