Question

Statement 1:$E_{cell}^o=0$ for a chloride ion concentration cell.
Statement 2:For this concentration cell where $E_{cell}=\frac{RT}{nF}ln\frac{\left[C{l}^{-}\right]LHS}{\left[C{l}^{-}\right]RHS}$

• A. If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation of the statement 1.
• B. If both Statement 1 and Statement 2 are true but statement 2 is not the correct explanation of the statement 1.
• C. If Statement 1 is true but Statement 2 is false.
• D. If Statement 1 is false but Statement 2 is true

Answer 1

Answer: (B)

$Pt,C{l}_2|C{l}^{-}(aq)||C{l}^{-}(aq)|C{l}_2(g),Pt.$
Anode: $2C{l}^{-}\to C{l}_2+2e^{-}$ (R.H.S.)
Cathode: $C{l}_2+2e\to 2C{l}^{-}$
$E_{cell}=O\frac{RT}{nF}ln\frac{\left[C{l}^{-}\right]LHS}{\left[C{l}^{-}\right]RHS}$
$E_{cell}=\frac{RT}{nF}ln\frac{\left[C{l}^{-}\right]RHS}{\left[C{l}^{-}\right]LHS}$