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Gibbs Phase Rule Degrees of Freedom Calculator — result sheet
Calculate degrees of freedom from the number of components, phases, and externally fixed intensive variables.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: F = C − P + 2 − fixed variables.
The result is the number of independent intensive variables remaining under the stated nonreacting Gibbs phase-rule setup.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Components C — minimum 1; maximum 1000
- Phases P — minimum 1; maximum 1000
- Fixed intensive variables — minimum 0; maximum 2
Worked example
| Input | Value |
|---|---|
| Components C | 2 |
| Phases P | 2 |
| Fixed intensive variables | 0 |
Degrees of freedom F = 2.
Assumptions and limits
- Components and phases are whole counts for an equilibrium system.
- Fixed variables are explicit constraints such as fixed temperature or pressure.
- Chemical reactions, extra conservation relations, non-equilibrium states, and phase-specific composition constraints are not added automatically.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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