For multi-component multiple phases to be in equilibrium at the same pressure and temperature, the _______________ of each component must be same in all phases?
Correct answer: C. Both A. and B
- A. Chemical potential
- B. Fugacity
- C. Both A. and B
- D. Neither A. nor B
Explanation
Phase equilibrium requires the chemical potential of each component to be equal in every phase. At common temperature and pressure, this is equivalently expressed as equality of fugacity, so both conditions apply.
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