Respuesta :
For a cell made up of cu(s) in 0.03 m cu(no3)2(aq) and cu(s) in 1.49 m cu, the value of ecell in v (assuming 298k) is 2.0 V. (no3) 2(aq)
What is the process of a solar cell?
Galvanic (or voltaic) cells generate an electric current via a thermodynamically advantageous redox reaction. In a separate compartment, or half-cell, each half-reaction takes place alongside an electrode. The electrodes where oxidation and reduction happen are called the anode and cathode, respectively.
What sets voltaic cells apart from galvanic ones?
Galvanic (or voltaic) cells use a thermodynamically advantageous redox reaction to produce an electric current. Each half-reaction takes place next to an electrode in a distinct compartment, or half-cell. The anode and cathode, respectively, are the electrodes where reduction and oxidation occur.
Briefing:
For the oxidation half cell;
Al(s) -------> Al^3+(aq) + 3e.
For reduction half cell;
Cu^2+(aq) +2e ------> Cu(s).
E°cell = E°cathode - E°anode
But;
E°cathode= 0.34 V
E°anode = -1.66 V
E°cell= 0.34 -(-1.66)
E°cell= 2.0 V
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