Adhesion describes water's attraction to other water molecules other substances hydrogen molecules acids and bases

The correct answer is "other substances."

Cohesion occurs when particles of a substance stick together. So sticking of water molecules with one another is cohesion.

Adhesion is the opposite of cohesion. It occurs when particles of different substance attract to each other. For example, water sticks to glass. Thus water's attraction to other substances is adhesion.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.