The molecular structure of nonmetallic tubes such as those made of PEX or rubber compounds is such that oxygen molecules can diffuse through their tube walls and be absorbed by the fluid within.

Question

Quizplus · Accepted Answer

Nonmetallic tubes like PEX and rubber compounds have a porous molecular structure that allows for the diffusion of oxygen molecules through their walls and absorption into the enclosed fluid.

The Molecular Structure of Nonmetallic Tubes Such as Those Made