A mercury barometer utilizes mercury (density = 13,600 kg/m³) in the column and requires a height of 0.8 m. A barometer that uses water in the column would require an approximate height of A) 0.1 m. B) 1 m. C) 10 m. D) 20 m.

Question

Quizplus · Accepted Answer

The height of the liquid column in a barometer is inversely proportional to the density of the liquid used. Since water has a density of approximately 1000 kg/m^3, which is about 13.6 times less dense than mercury, the height of the water column needed to measure atmospheric pressure would be 13.6 times higher than that of mercury, which is 0.8 m for mercury. Therefore, for water, it would be 0.8 m * 13.6 ≈ 10.88 m, which is approximately 10 m.

A Mercury Barometer Utilizes Mercury (Density = 13,600 Kg/m3) in the Column

A Mercury Barometer Utilizes Mercury (Density = 13,600 Kg/m³) in the Column