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In a mole of water vapour at STP, the vo...

In a mole of water vapour at STP, the volume actually occupied or taken up by the molecules (.e., Avogadro number ` xx ` the volume of one molecule) is

A

less than 0.1% of 22.4 litres

B

about 10% of the volume of the container of 22.4 litres

C

between 10% to 20% of 22.4 litres

D

between 2% to 5% of 22.4 litres.

Text Solution

Verified by Experts

The correct Answer is:
A
One mole of water = 18g = 18 `cm^(3)`
(density of water =1 g/`cm^(3)`)
Volume ofone mole of water vapours =22.4 L = 22400 `cm^3`
Percentage volume actually occupied by the water molecules `=(18)/(22400) xx 100 = (9)/(112) lt 0.1%`
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