A weak electrolyte having the limiting equivalent conductance of 400 S `cm^(2)g`. `"equivalent"^(-1)` at 298 K is 2% ionized in its 0.1N solution. The resistance of this solution (in ohms) in an electrolytic cell of cell constant 0.4 `cm^(-1)` at this temperature is:-A. 200B. 300C. 400D. 500

A weak electrolyte having the limiting equivalent conductance of 400 S

1.	A weak electrolyte having the limiting equivalent conductance of 400 S `cm^(2)g`. `"equivalent"^(-1)` at 298 K is 2% ionized in its 0.1N solution. The resistance of this solution (in ohms) in an electrolytic cell of cell constant 0.4 `cm^(-1)` at this temperature is:-A. 200B. 300C. 400D. 500
Answer» Correct Answer - D `alpha=(wedge_(m))/_(wedge_(oo))` `wedge_(oo)=400S" "cm^(2)g" "eq^(-1)` `wedge_(m)=wedge_(oo)xxalpha=400xx(2)/(100)=8` `wedge_(m)=(kxx1000)/(C)` `k=(1)/(R)xx`cell constant `wedge_(m)=(1)/(R)xx`cell constant`xx(1000)/(C)` `R=("cell constant")/(wedge_(m)xxC)xx1000` `R=(0.4xx1000)/(8xx0.1)=500ohm`

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A weak electrolyte having the limiting equivalent conductance of 400 S `cm^(2)g`. `"equivalent"^(-1)` at 298 K is 2% ionized in its 0.1N solution. The resistance of this solution (in ohms) in an electrolytic cell of cell constant 0.4 `cm^(-1)` at this temperature is:-A. 200B. 300C. 400D. 500

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