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the mercury barometer consists of a glass tube sealed at one end and immersed with its open end in a reservoir with mercury. the top end inside the tube remains with almost zero pressure of mercury vapor. what is the height of the liquid in the tube if the outside pressure is 0.650 atm ? 1 atm

Respuesta :

0.494 m is the height of the liquid in the tube if the outside pressure is 0.650 atm .

What are the functions of a mercury barometer?

Aneroid barometers are calibrated and examined using a mercury barometer. Altitude above sea level or atmospheric pressure are two examples of how calibration can be done. One kind of aviation altimeter is based on the idea of height above sea level and uses barometric pressure.

Briefing:

Mercury barometer:

Pa = ρgh

∴ Pa = 0.650 atm = 65861.25 Pa = 65861.25 Kg/ms²

∴ ρ = 13600 Kg/m³

∴ g = 9.80 m/s²

⇒ h = (65861.25 Kg/ms²) / (13600 Kg/m³ )(9.80 m/s²)

⇒ h = 0.494 m

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