Pressure Gauge: Manometer Video Lessons

Concept

# Problem: Assume Patmos=1.00atm. What is the gas pressure in the manometer Pgas? Express your answer in pascals to three significant figures.h1 = 13.5 cmh2 = 6.00 cmDensity of mercury = 1.36×104 kg/m3

###### FREE Expert Solution

$\overline{){{\mathbf{P}}}_{\mathbf{g}\mathbf{a}\mathbf{s}}{\mathbf{=}}{{\mathbf{P}}}_{\mathbf{a}\mathbf{t}\mathbf{m}\mathbf{o}\mathbf{s}}{\mathbf{+}}{\mathbf{\left(}}{{\mathbf{h}}}_{{\mathbf{2}}}{\mathbf{-}}{{\mathbf{h}}}_{{\mathbf{1}}}{\mathbf{\right)}}{\mathbf{\rho }}{\mathbf{g}}}$

h1 = 13.5 cm (1 m / 100 cm) = 0.135 m

h2 = 6.00 cm (1 m / 100 cm) = 0.06 m

ρ = 1.36×104 kg/m3

g = 9.8 m/s2

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###### Problem Details

Assume Patmos=1.00atm. What is the gas pressure in the manometer Pgas? Express your answer in pascals to three significant figures.

h1 = 13.5 cm

h2 = 6.00 cm

Density of mercury = 1.36×104 kg/m3