Question

What is diffusion? (2)

a. Two reasons to justify:

Water at room temperature is a liquid.​

Answer 1

Answer:

Explanation:

Water at room temperature is liquid due to the presence of hydrogen bond. These bonds hold water molecules together for small fractions of a second. Water molecules move continuously.

Answer 2

Answer:

The movement of particles from one medium ( higher concentration ) to other ( lower concentration ) on their own ( without any act of external forces ) is known as diffusion .

Wafter is liquid at room temperature because the room temperature ( 20-30° C) is more than melting point of water ( 0° C ) .