Question

The cell reaction for the given cell is
$\left(Pt\right)_{\left(\right. s \left.\right)}\left|H_{2 \left(\right. s \left.\right)} \underset{pH = 2}{\left||H_{\left(\right. aq \left.\right)}^{\oplus}\right||} \underset{pH = 3}{H_{\left(\right. aq . \left.\right)}^{\oplus} \parallel} H_{2 \left(\right. g \left.\right)}\right|\left(\right.Pt\left(\left.\right)_{\left(\right. s \left.\right)}$

• A. Spontaneous
• B. Non-spontaneous
• C. In equilibrium
• D. None of these

Answer 1

Answer: (B)

$E_{\text{cell }}=E_{\text{cell }}^{0}-\frac{0 . 0591}{2}log\left(\frac{\left(10\right)^{- 2}}{\left(10\right)^{- 3}}\right)^{2}$
$E_{\text{cell }}=\frac{- 0 . 0591}{2}log10^{2}$
$E_{\text{cell }} < 0\Rightarrow ΔG>0$