List of top Chemistry Questions on Fuel Cells asked in UP Board XII

Calculate the e.m.f. of the following cell writing the cell reaction: \[ \text{Cu} | \text{Cu}^{2+}(1M) || \text{Ag}^+(1M) | \text{Ag} \] Given: \[ E^0_{\text{Cu}^{2+}/\text{Cu}} = +0.34 \text{ volt}, \quad E^0_{\text{Ag}^+/\text{Ag}} = +0.80 \text{ volt} \]

Find the value of \( E^\circ_{\text{Ce}^{4+}/\text{Ce}^{3+}} \) for the reaction: \[ 2\text{Ce}^{4+} + \text{Co} \rightarrow 2\text{Ce}^{3+} + \text{Co}^{2+} \] Given: \[ E^\circ_{\text{cell}} = 1.89V, \quad E^\circ_{\text{Co}^{2+}/\text{Co}} = -0.28V \]