An electrochemical cell couples the half-reactions Under a particular set of…

CHEMISTRY · Subjective · A Level · Chemistry · Electrode potentials · Electrode potentials

Problem

An electrochemical cell couples the half-reactions

Fe^{3+}(\text{aq}) + e^- \rightarrow Fe^{2+}(\text{aq})

Sn^{2+}(\text{aq}) \rightarrow Sn^{4+}(\text{aq}) + 2 e^-

Under a particular set of non-standard conditions the measured cell potential is

-0.04\,\text{V}

. Indicate whether the spontaneous reaction proceeds as originally written or in the opposite direction.