Thermometer Hydrometer Yomameter Cumulative pressures: Weight of 1 foot tall by

Question

Thermometer Hydrometer Yomameter Cumulative pressures: Weight of 1 foot tall by 1 square inch of water.= 433 lbs Liquid pressure = height * wt of H,0 * specific gravity of the liquid Atmospheric pressure = 14.7 lbs/in^2 = 101.3 kPa An out of service open tank has accumulated 3.5 feet of water. How much pressure is on the bottom of the tank in psia? A 35 Ft column of kerosene with a specific gravity of 0.83 has how much bottom pressure? A 27 FT tower with an overhead pressure of 15 psi. a liquid level of 16 feet, and a vapor pressure of 12.5 psi has a bottom pressure of 32 psi. What is the specific gravity of the material in the tower? A hydrocracker tower 52 Ft tall has a liquid level of 24.5 feet. At 280 Degree F the hydrocrackate has a specific gravity of 0.66 and a vapor pressure of lbs. If the H-2 pressure on the tower is 80

Explanation / Answer

Solution :-

Q30)

Specific gravity = 0.83   = 830 kg/m3

Column height = 35 feet = 10.668 m

Formula

P = d*g*h

d= density in kg/m3

g= 9.8066 ms-2

h = 35 feet = 10.668 meter

lets put the values in the formula

p = 830 kg per m3 * 9.8066 ms-2 * 10.668 m

P= 86831.95 N/m

Now lets convert the N/m to psi

86831.95 N per m * 0.000145 psi / N per m = 12.59 psi

So the pressure at bottom is 12.59 psi

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