Wil manometer work if it's open end is closed ? explain
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The liquid mercury is equalized in the two sides of the tube at atmospheric pressure of the manometer. If the pressure of the gas is equal to atmospheric pressure the mercury will remain at the same levels on both sides.
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closed-end manometer is a U-shaped tube with one closed arm, one arm that connects to the gas to be measured, and a nonvolatile liquid (usually mercury) in between. ... In this case, the distance between the liquid levels corresponds to the difference in pressure between the gas in the container and the atmosphere.
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