Question

E. Answer the following questions. 1. Why do solids have a fixed shape and a definite volume?
2. Briefly describe an activity to show that pure water is a transparent liquid.
3. Describe an activity to show that a solid can diffuse slowly into a liquid.
4. What is a 'saturated solution'? How can one prepare a saturated solution of common salt in water?
5. Suggest one activity to show the effect of temperature on the solubility of a solid in water. ​

Answer 1

Answer:

1 .. the molecules in a solid are in fixed position by the liquid do not have fixed position 2 . put a solid object inside the pure water • as we can see that object that we deduced that pure water is transparent 3 . The slow diffusion of solids in liquid can be observed in the experiment where potassium permanganate is added to water. Place some potassium permanganate in a beaker, add some water to it and observe. ... This is caused due to the diffusion of the solid particles of the potassium permanganate into the water/liquid. 4 . Adding sugar to water until it no longer dissolves creates a saturated solution. Continuing to dissolve salt in water until it will no longer dissolve creates a saturated solution. 5 . take equal volume of water into separate glass tumbler. heat the water in one of the tumbler and equal amount of sugar into tumbler and stir. the sugar dissolve keep on adding measured amount of sugar into tumblr till it stop dissolving. ... you will find the amount of sugar dissolve in hot water is more.