Physics · Thermodynamics
In metallurgical and materials engineering systems where pressure is maintained constant at one atmosphere, the modified Gibbs Phase Rule is given by: [where F = number of degrees of freedom, C = number of components, P = number of phases in equilibrium]
- 1F = C - 1 - P
- 2F = C - 1 + P
- 3F = C + 1 + P
- 4F = C + 1 - P✓
Correct answer
F = C + 1 - P
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