Question
For the inverted manometer of Fig. $\mathrm{P} 2.32,$ all fluids are at $20^{\circ} \mathrm{C} .$ If $p_{B}-p_{A}=97 \mathrm{kPa},$ what must the height $H \mathrm{be}$ in $\mathrm{cm} ?$
Step 1
For water, we have $\gamma_{water} = 9790 \, N/m^3$ and for mercury, we have $\gamma_{mercury} = 133100 \, N/m^3$. Show more…
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As shown in Fig. 1.6, a manometer is attached to a tank of gas in which the pressure is $104.0 \mathrm{kPa}$. The manometer liquid is mercury, with a density of $13.59 \mathrm{~g} / \mathrm{cm}^{3}$. If $g=9.81 \mathrm{~m} / \mathrm{s}^{2}$ and the atmospheric pressure is $101.33 \mathrm{kPa}$, calculate (a) the difference in mercury levels in the manometer, in $\mathrm{cm}$. (b) the gage pressure of the gas, in $\mathrm{kPa}$.
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In Fig. $\mathrm{P} 2.33$ the pressure at point $A$ is $25 \mathrm{lbf} / \mathrm{in}^{2}$. All fluids are at $20^{\circ} \mathrm{C}$. What is the air pressure in the closed chamber $B,$ in $\mathrm{Pa} ?$
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