Let us improve eflections on Concepts Explain diffusion phenomena based on the states of matter. (AS) Mention the properties of solids (AS) Mention the properties of liquids (AS) Explain "fluid" with one example. (AS) Mention the properties of gases. (AS) Give two daily life situation where you observe the diffusion. (AS) ree distribution by T.S. Government 2021-22
Answers
1).Diffusion of a gas liquid is the process of spreading through or into a surrounding substance by mixing with it. It takes place high concentration to the region of concentration send the uniform distribution is attained. It can occur in solid, liquid, gaseous state. The phenomena of diffusion in three different states are as.
Diffusion in gaseous state:
rate of diffusion is higher in gaseous due to more inter molecular space, and they move with higher kinetic energy. lighter gases diffuse faster than heavier gases.
EXAMPLE: Mixing of two gases
Diffusion in a liquid state:
rate of diffusion in liquids is greater than solids.
EXAMPLE- Mixing of the KMnO4 solution in water.
Diffusion in the solid state:
rate rate of diffusion in solids is very rarely observed.
2). Basically solids have five kinds of properties.
i). A solid has a definite shape and volume.
ii). Solids in general have higher density.
iii). In solids, intermolecular forces are strong.
iv). diffusion of a solid into another solid is extremely slow.
v). Solids have high melting points.
3). liquids liquids have the following properties:
i). liquids are almost incompressible.In liquids molecules are pretty close to each other. The molecules does not have a lot of space between them. the the molecules cannot squeezed closer to one another.
ii). Liquids liquids have fixed volume but no fixed shape. They have fixed volume but they do not have fixed or definite shape. If you take 100 ml of water. pour water in a cup, it will take shape off the cup. Now for the liquid from the cup to a bottle, The liquid has changed its shape and now it has taken the shape of bottle.
iii). Liquid flow from higher to lower level.
iv). Liquids have their boiling point above room temperature, under normal conditions. the liquids on heating slowly changes to vapour or gaseous phase. the process is called boiling.
4). Fluid is defined as anything that can flow as a liquid or gas.
For example: water, oil.
5). Two daily life examples about diffusion are:
you you can smell perfume because it diffuses into the air and makes its way into our nose.
A teabag placed in a cup of hot water will diffuse into the water placing food colouring in a liquid will diffuse the colour. Cigarette smoke diffuses into the air.
6). daily life application of compressibility in our life is as follow:
i). Use of LPG (liquefied petroleum gas) cylinders in our houses.
ii). shaving -- shaving cream c is compressed so that it can come outside as foam.
iii). Milk and water containers.
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