What happens if water is used in barometers instead of mercury?

Explain why water cannot be used in place of mercury in a barometer? The atmospheric pressure at sea level = 76cm of Hg = 1.013×105 Pascal. That is, if water is used in barometer tube instead of mercury, the length of the tube must be greater than 10.326 cm. So, we cannot replace mercury by water in the barometer.

How long would the liquid column need to be if I water is used in mercury is used?

For the density of mercury, use ρHg = 13,595 kg/m3 and for gravitational acceleration use g = 9.807 m/s2. If water were used (instead of mercury) to meet the standard atmospheric pressure, a water column of roughly 10.3 m (33.8 ft) would be needed.

What will be the length of mercury column in a barometer tube when the atmospheric?

The height of the mercury level from bottom will be remain the same. Therefore, the length of the mercury column in tube will be 150 cm.

How will the barometric height be affected if mercury was replaced by water in a simple barometer?

Answer: . The column of water inside the barometer would be 13,6 times higher, since the density of mercury is 13,6 times that of water.

Why don’t we use water in barometer?

Water is not a suitable barometric liquid because: (i) The density of water is low (103 kg m-3). Water barometer will support 10.4m of water at sea level. It is impractical to have such a long tube.

Could we use water instead of mercury to make a barometer what advantages and disadvantages would be associated with the use of water explain?

Explain. Water could be used, but the barometer would have to be much larger than one using mercury because of the much smaller density of water. The water column would move greater distances for small changes in pressure, however, thus yielding a more sensitive measurement. The pressure decreases.

Why mercury is used as a barometric liquid?

Mercury is employed in the barometer because its density is sufficiently high for a relative short column to be obtained. and also because it has very small vapour pressure at normal temperature. High density scales down the pressure head(h) to repesent same magnitude of pressure in a tube of smaller height.

What will be the length of mercury column in a barometer tube when the atmospheric pressure is 75 cm of mercury and the tube is inclined at an angle of 60 to the vertical?

Answer:86.6 cm Explanation:The barometric height h = 75cm.

What will be the length of mercury column in a barometer tube when the atmospheric pressure is 75 cm?

l=(75×2)/√3=86.6cm.

How is the barometric height of a simple barometer affected if the barometer moved inside mine?

If the tube of a simple barometer is pushed down into the trough of mercury then the atmospheric force exerted on the tank will be adjusted by the mercury until the weight of the mercury column gets balanced. Hence the barometric height of a simple barometer remains unaffected.

Why is mercury used as a barometric liquid?

Why mercury is used as a liquid in barometer?