Electrochemistry - Result Question 6
####7. An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to:
[2010]
(a) increase in ionic mobility of ions
(b)
(c) increase in both i.e. number of ions and ionic mobility of ions
(d) increase in number of ions
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Solution:
- (a) Strong electrolytes are completely ionised at all concentrations. On increasing dilution, the number of ions remains the same but the ionic mobility increases.
On increasing dilution, both conductivity and normality decreases. But the decreases in conductivity is more than compensated by decrease in its normality. Hence, effectively
