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calculate the degree of dissociation of pcl5 if the vapour density at the given temperature is 70.

calculate the degree of dissociation of pcl5 if the vapour density at the given temperature is 70.

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1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
9 years ago
initial vapour densuty/vapour density at equilibrium=mole at equilibrium/mole initial
PCL5 -----PCL3 +CL2
let the initial concentration be C
concentration of PCL3=C-Cx,x is the degree of dissociation
PCL3=Cx
CL2=Cx
total mole at equilibrium=C +Cx
initial mole=C
therefore
C +Cx/C =104.25/70
1+x=1.485
x=.485

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