Voltaic Cell
Zn/Cu Battery with Voltage Measurement
Explore how a zinc-copper voltaic cell generates electrical energy through redox reactions. Observe electron flow, ion movement, and voltage production in this electrochemical cell.
ZnSO4 Solution
CuSO4 Solution
0.00 V
Observation:
Click 'Start Cell' to begin the electrochemical reaction. Electrons will flow from zinc to copper through the wire, while ions move through the salt bridge.
Cell Potential:
Standard cell potential (E°cell) for Zn/Cu: +1.10 V
The Science Behind Voltaic Cells
Key Concepts:
Voltaic cells convert chemical energy to electrical energy through redox reactions:
- Anode (oxidation): Zn → Zn2+ + 2e- (E° = +0.76 V)
- Cathode (reduction): Cu2+ + 2e- → Cu (E° = +0.34 V)
- Salt bridge: Maintains electrical neutrality by allowing ion flow
- Cell potential: E°cell = E°cathode - E°anode = +1.10 V
Electron Flow:
Electrons flow from anode (Zn) to cathode (Cu) through the external circuit, creating an electric current that can do work.
Applications:
Batteries, electrochemical sensors, corrosion prevention, and electroplating processes.
