Question

When a jar of coffee is opened,people in all parts of the room soon notice the smell.
Why?​

Answer 1

The smell spreads throughout the room due to a process called diffusion. Diffusion is the movement of particles from an area of high concentration to an area of low concentration. This continues until the concentration is relatively uniform throughout the room, at which point people around the room can detect the smell.

Answer 2

Answer:When a jar of coffee is opened, then people in all parts of room notice smell.

Explanation: Due to the process of diffusion.