Q.

At 375K and at a total pressure of one atmosphere sulphuryl chloride SO2,Cl undergoes dissociation according to the equation : SO2Cl2(g)SO2(g)+Cl2(g) to the extent of 90%. Hence the work done in the process at the same temperature:

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a

-4.95kJ

b

-2.8kJ

c

+53.6kJ

d

-1.4kJ

answer is B.

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Detailed Solution

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PV=nRT  =Pdν =-1×R×3751 =-3.117KJ   90% of 3.117KJ=-2.8KJ

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At 375K and at a total pressure of one atmosphere sulphuryl chloride SO2,Cl undergoes dissociation according to the equation : SO2Cl2(g)⇄SO2(g)+Cl2(g) to the extent of 90%. Hence the work done in the process at the same temperature: