Question

Which allotrope of phosphorus is kinetically most stable?

Answer 1

black phosphorus is thermodynamically more stable and hence it is kinetically also more stable

Answer 2

Answer:

The most thermodynamically stable allotropic form of phosphorus is black phosphorus.

Explanation:

• We are aware that a system is in its lowest energy state or in chemical equilibrium with its environment when it is stable thermodynamically. Different allotropic forms of phosphorus occur, including red, white, black, and yellow. The most thermodynamically stable allotropic form of phosphorus is black phosphorus. At normal pressure and temperature, it is stable.

• The structure of black phosphorus is orthorhombic. It has a structure that is similar to a honeycomb. Each atom in the interconnected, six-membered ring lattice of black phosphorus is bound to three other atoms. As a result, black phosphorus has relatively little reactivity.

• Black phosphorus is the most stable and has a lower natural reactivity. Black phosphorus is thus the most allotropic form of phosphorus that is thermodynamically stable.

Note:

Black phosphorus has a structure resembling graphite. Flaky and dark, black phosphorus is a good conductor of electricity. Sheets of connected atoms that are puckered make up black phosphorus. Anisotropic behavior of electrons is observed in layered black phosphorus.

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