Question

Which statement is true about a spontaneous cell reaction in galvanic cell?

• A. $E_{cell}^{\circ }>0,\Delta G^{\circ }<0$
• B. $E_{cell}^{\circ }<0,\Delta G^{\circ }>0$
• C. $E_{cell}^{\circ }>0,\Delta G^{\circ }>0$
• D. $E_{cell}^{\circ }=0,\Delta G^{\circ }=0$

Answer 1

The correct option is A $E_{cell}^{\circ }>0,\Delta G^{\circ }<0$

$\Delta G^{\circ }=-nF{E}_{cell}^{\circ }$
For spontaneous cell $\Delta G^{\circ }=-ve$
So, for the above equation $E_{cell}^{\circ }=+ve$
Hence $E_{cell}^{\circ }>0$