Electrochemical Series Calculator
Predict Cell Potential & Spontaneity
Select two half-reactions to compute E°_cell, ΔG, and reaction direction using standard reduction potentials.
Cell Reaction & Thermodynamics
E°_cell = — V
E_cell (Nernst) = — V
ΔG° = — kJ/mol
Spontaneity: —
The Electrochemical Series Calculator is a scientifically precise, interactive tool that computes **cell potential (E°_cell)**, **Nernst potential**, **Gibbs free energy (ΔG)**, and **reaction spontaneity** using the **electrochemical series** and standard reduction potentials. Based on peer-reviewed IUPAC/NIST data and the Nernst equation, it predicts galvanic cell behavior under standard and non-standard conditions. Whether you're analyzing corrosion in irrigation systems, designing soil redox sensors, or teaching electrochemistry, this calculator delivers reliable results. Explore sustainable electrochemical solutions at Agri Care Hub.
What is the Electrochemical Series?
The **electrochemical series** ranks half-reactions by standard reduction potential (E°), with stronger oxidants at the top (positive E°) and stronger reductants at the bottom (negative E°). A spontaneous cell has E°_cell > 0, where the cathode has higher E° than the anode. Detailed principles are covered in Electrochemical Series on ScienceDirect.
Scientific Foundation: Cell Potential
Standard cell potential:
Nernst equation (25°C):
ΔG° = -n F E°_cell (F = 96485 C/mol)
Importance of Electrochemical Series
Critical in:
- Corrosion Control: Fe/Zn galvanic protection
- Batteries: Li-ion, Daniell cell
- Soil Redox: Fe³⁺/Fe²⁺ in flooded fields
- Water Treatment: Cl₂ disinfection
- Electroplating: Cu, Ag deposition
In agriculture, it aids in managing metal mobility in soil — a focus at Agri Care Hub.
User Guidelines
Steps:
- Select cathode (reduction) and anode (oxidation)
- Enter temperature and Q = [reactant]/[product]
- Click “Calculate Electrochemical Series”
- View E_cell, ΔG, and spontaneity
E°_cell > 0 → spontaneous
When and Why to Use
Use when you need to:
- Predict Zn protection of steel pipes
- Design soil pH sensors
- Optimize battery for farm equipment
- Teach redox reactions
- Assess pesticide degradation
Purpose of the Calculator
To make electrochemical prediction instant and accurate. It eliminates lookup errors, applies the Nernst equation, and supports data-driven decisions in research and industry.
Standard Reduction Potentials (V)
- Li⁺/Li: -3.04
- Zn²⁺/Zn: -0.76
- Fe²⁺/Fe: -0.44
- 2H⁺/H₂: 0.00
- Cu²⁺/Cu: +0.34
- Ag⁺/Ag: +0.80
- O₂/H₂O: +1.23
Applications in Agriculture
Electrochemical series enables:
- Corrosion-resistant irrigation
- Soil redox mapping
- Electrochemical nutrient sensors
- Green hydrogen for farms
Learn more at Agri Care Hub.
Scientific Validation
Based on:
- IUPAC Standard Potentials
- NIST Chemistry WebBook
- Bard & Faulkner “Electrochemical Methods”
- Peer-reviewed studies on Electrochemical Series
Benefits
- 100% accurate
- Nernst equation included
- Mobile-friendly
- No login
- SEO-optimized
Conclusion
The Electrochemical Series Calculator is your essential tool for redox chemistry. From corrosion prevention to sustainable farming, it delivers science-backed clarity. Start calculating today and optimize electrochemical systems with Agri Care Hub.