Calculate the potential of the electrochemical cell and determine if it is spontaneous as written at 25 deg * c. The given electrochemical cell is ________. pt(s)|sn²(0.0062 m),sn⁴(0.11 m)||fe³(0.11 m),fe²(0.0018 m)|pt(s)|. The standard reduction potentials are ________.E°(Sn⁴+/Sn²+) = 0.154 V and E°(Fe³+/Fe²+) = 0.771 V - 0.617 V. Is the electrochemical cell spontaneous or not spontaneous as written at 25°C?
2) Not spontaneous
3) Spontaneous