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A barometer tube is 1 m long and 2 cm^2 ...

A barometer tube is 1 m long and `2 cm^2` in cross section. Mercury stands up to height of 75 cm in the tube. When a small amount of oxygen is introduced in the space above the mercury level,the level falls by 5 cm. Calculate the mass of the oxygen introduced. Room temperature `=27^@C g=10 m.s^-2` and density of mercury = `13600 kg.m^-3`

Text Solution

Verified by Experts

The correct Answer is:
`5.24 times 10^-3 g`
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