For a 2 molal aqueous NaCl solution, the mean ionic activity coefficient $$\left( {{\gamma _ \pm }} \right)$$ and the Debye-Huckel Limiting Law constant (A) are related as
A. $$\log {\gamma _ \pm } = \sqrt 2 A$$
B. $$\log {\gamma _ \pm } = - \sqrt 2 A$$
C. $${\gamma _ \pm } = {10^4}$$
D. $${\gamma _ \pm } = {10^{ - 4}}$$
Answer: Option B
This Question Belongs to Engineering Chemistry >> Electrochemistry
Related Questions on Electrochemistry
A. $$2.303\frac{{RT}}{F}$$
B. $$ - 2.303\frac{{RT}}{F}$$
C. $$E_{{M^ + }|m}^ \circ + 2.303\frac{{RT}}{F}$$
D. $$E_{{M^ + }|m}^ \circ - 2.303\frac{{RT}}{F}$$
Given that E°(Fe3+, Fe) = -0.4 V and E°(Fe2+, Fe) = -0.44 V, the value of E°(Fe3+, Fe2+) is
A. 0.76V
B. -0.40 V
C. -0.76 V
D. 0.40 V
A. decrease by a factor of 2
B. increase by a factor of 2
C. decrease by a factor of 4
D. increase by a factor of 4
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