COCI2 gas dissociates according to the equation,COCl2(g)⇌CO(g)+Cl2(g) when heated to 700 K the density of the gas mixture at 1.16atm and at equilibrium is 1.16 g/liter. The degree of dissociation of COCl2 at 700K is.

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0.28

0.50

0.72

0.42

answer is C.

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Detailed Solution

MO(observed molar mass)=dRTP=57.47 MT(Theoritical molar mass)=99 α=MT-Mo(n-1)Mo=99-57.4757.47=0.72

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