Which of the following accurately portrays a phase diagram? Which of the followi

Question

Which of the following accurately portrays a phase diagram?

Which of the following accurately portrays a phase diagram?

Any temperature above the liquid-solid line on a phase diagram is the melting point. The triple point is the conditions of temperature and pressure at which the liquid and gas coalesce into a supercritical fluid. The regions of a phase diagram represent the temperature and pressure conditions under which a given phase is stable. The critical point is the unique set of conditions in which the liquid, solid, and gas phases all exist at equilibrium

Explanation / Answer

Any temperature above the liquid-solid line on a phase diagram is the melting point.

--> FALSE, actually, the melting point MUST be IN the line, i.e. the line is the equilibrium line, any other point above this is not in equilibrium, so this is false

The triple point is the conditions of temperature and pressure at which the liquid and gas coalesce into a supercritical fluid.

---> triple point is where liquid + gas + solid interact, so this is not the triple point, this is FALSE

The regions of a phase diagram represent the temperature and pressure conditions under which a given phase is stable.

This is true, the regions present PT conditions

The critical point is the unique set of conditions in which the liquid, solid, and gas phases all exist at equilibrium

---> False, this is the cas eonly for TRIPLE Point

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