Paper

Definition

A paper is a thin material, typically made from cellulose pulp derived from wood, rags, or grasses. It is used for writing, printing, packaging, and numerous other purposes.

5 Must Know Facts For Your Next Test

1. Paper has hydrophilic properties due to the cellulose fibers that attract water molecules.
2. The interaction of water with paper can cause swelling and loss of structural integrity in the material.
3. Water can act as a solvent for various substances on paper, leading to potential smudging or diffusion of inks and dyes.
4. Capillary action allows water to move through the microscopic pores in paper, which is important for processes like chromatography.
5. Recycling paper reduces water consumption significantly compared to producing new paper from raw materials.

Review Questions

• How do the hydrophilic properties of cellulose fibers impact the behavior of paper when it comes into contact with water?
• What happens to the structural integrity of paper when it absorbs water?
• Why does capillary action play a significant role in how water interacts with paper?

Related terms

Cellulose:

An organic compound that forms the primary structure of plant cell walls and is the main component of paper.

Hydrophilic: Having an affinity for water; readily absorbing or dissolving in water.

Capillary Action: The ability of a liquid to flow in narrow spaces without the assistance of external forces like gravity.