The mercury rises 0.368 cm.
Calculations:
x = distance the mercury rises
d = depth of water = 10 cm = 0.10 m
ρ = density of water = 1000 kgm⁻³
ρ' = density of mercury = 13600 kgm⁻³
P₀ = atmospheric pressure
Using equilibrium pressure on both sides:
P₀ + ρ g d = P₀ + ρ' g (2x)
(1000) (0.10) = (13600) (2x)
x = 0.00368 m
x = 0.368 cm
When a gas or chemical from the air needs to travel through a substance in the U-tube, especially at a lower temperature, u-shaped tubes are utilized.
U-tube is a device used for water electrolysis, for laboratory hydrogen and oxygen obtaining.
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