Substance ‘A’ has high compressibility and fills completely the vessel in which it is kept. Predict the physical state of Substance ‘A’ and give three more properties of this state of matter. (2)
ii) Give reasons for the following:
A rubber band changes its shape on stretching, yet it is called a solid. b)The level of water does not change when sugar is dissolved in water.
iii) How does the process of diffusion affect the survival of aquatic plants and animals?
Answers
Answer:
Please mark me as braineliest
Answer
(a) The particles of gases have a low force of attraction between them. The particles are freely moving in the vessel in which it is filled.
(b) The particles of gas have the least force of attraction. They are constantly moving randomly. The particle of gas hits the walls of the container thereby applying force and hence pressure on the wall.
(c) The wooden table has a definite shape and a definite volume. The particles of wood are closely packed. They do not take the shape of the container. Hence wooden table satisfies the properties of solid.
(d) The particles of air are very loosely bounded. They are far away from each other having a lot of space between them. Hence we can easily move our hands in the air. But in a solid block, the particles are tightly held by a strong force of attraction. So there is some or no space between them. Hence we need a karate expert.