The treatment of a particle in a one-dimensional box can be extended to a rectangular box of dimensions Lx, Ly, and Lz, yielding the following expression for energy.

E = h^2/8m((nx^2/Lx^2) + (ny^2/Ly^2) + (nz^2/Lz^2))

The three quantum numbers nx, ny, and nz independently can assume only integer values.

(a) Determine the energies of the three lowest levels, assuming that the box is cubic.
(b) Determine the degeneracies of all the levels that correspond to the quantum numbers having values of 1 or 2.
E111, E112, E122, E222
(c) How will these degeneracies change in the box where Lx ≠ Ly ≠ Lz?

25 degrees celsius

explanation:

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

elements make up everything, and they combine to make compounds.

the answer is c