Q19 of 160 Page 17

Which of the two diffuses slower: bromine vapour into air or copper sulphate into water?

Diffusion of Copper sulfate into water will takes place at the slower rate Gas in gas diffusion is faster because of the large spaces present between the particles of the gases as compared to solids and liquids. Hence bromine vapour into air will diffuse quicker.

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17

Write the full forms of the following:

(a) LPG (b) CNG

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Which of the two diffuses faster: a liquid or a gas?

 20

State whether the following statement is true or false:

Red brown bromine vapour diffuse into air in a gas jar but the colourless air molecules do not diffuse into bromine vapour.

 21

A bottle of perfume was opened in a room. The smell of its vapours spread in the entire room. Name the property of gases which is responsible for this behavior of perfume vapours.