Give 2 reasons to justify:

• Water at room temperature is a liquid.
• An iron Almirah is solid at room temperature.

Water and iron exhibit different states of matter at room temperature due to their unique molecular structures and bonding characteristics.

Reason 1: Molecular Structure

Water is composed of small molecules that are held together by hydrogen bonds. At room temperature, these bonds allow the molecules to move freely, resulting in a liquid state. In contrast, iron consists of tightly packed atoms arranged in a crystalline structure, which restricts movement and keeps it solid.

Reason 2: Temperature and Energy

The temperature affects the energy of particles in a substance. In water, the energy at room temperature is sufficient to keep the molecules in motion, preventing them from forming a solid. For iron, the energy is not enough to break the strong metallic bonds, maintaining its solid form.

• Water: Liquid due to molecular movement.
• Iron: Solid due to strong atomic bonds.