Question

When a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room. Which sentence explains this?

a Gases do not have a definite volume.
b The particles of gases are closely packed.
c The force of attraction between particles in gases is very high.
d Gases are not matter.

Answer 1

Answer: A) Gases do not have a definite volume.

Explanation: When a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room. The gas spreads around the room since gases do not have a definite volume and they only take the volume of the container they are in. A perfume is a gaseous substance. In a bottle, the gases have been compressed under high pressure so as to take up a little volume. One very important property of gases is that, they do not have a definite volume. They simply assume the volume of their containers. When the perfume is released, it simply begins to spread around through the process of diffusion so as to fill the volume of room.

Answer 2

I think the correct answer from the choices listed above is option A. When a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room. The gas spreads around the room since gases do not  have a definite volume and they only take the volume of the container they are in. Hope this helps.