1.

Let CNaCl and CBa\(SO_{4}\) be the conductances (in S) measured for saturated aqueous solutions of NaCl and BaSO4 , respectively, at a temperature T. Which of the following is false ? (1) Ionic mobilities of ions from both salts increase with T (2) CNaCl >> CBa\(SO_{4}\)  at a given T (3) CNaCl(T2 ) > CNaCl(T1 ) for T2 > T1 (4) CBa\(SO_{4}\) (T2 ) > CBa\(SO_{4}\)  (T1 ) for T2 > T1

Answer»

(3) CNaCl(T2 ) > CNaCl(T1 ) for T2 > T1 

Dissolution of BaSO4 is an endothermic reaction 50 on increasing temperature number of ions of BaSO4 decrease so it's conduction also decrease.



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