Calculate Hydrostatic Pressure of a vertical column of Acetic Acid

Calculate how much hydrostatic pressure a vertical column of acetic acid supposed to produce PSI pressure.

Acetic acid has a specific gravity of 1.0492^20/4.

Explain what the superscript “20/4” means, and calculate how much hydrostatic pressure a vertical column of acetic acid 12.3 meters high is supposed to produce, in PSI at 20^o C.

Hydrostatic Pressure of a vertical column

Calculate Hydrostatic Pressure of a vertical column of Acetic Acid

P = ____________ PSI

Suppose the pressure gauge connected to the bottom of this vessel registers 14.2 PSI instead of the value you calculated.

Hydrostatic Pressure of a vertical column of Acetic Acid

Identify the likelihood of each specified fault shown in the table, considering each fault one at a time (i.e. no coincidental faults) to determine whether or not each fault could independently account for the discrepancy in pressure measurement.

Answer:

The 20/4 superscript means is that acetic acid is this much denser at 20^o C than water is at 4^o C.

Questions For You:

1. Explain how we could determine what kind of calibration error this gauge had, if indeed its calibration was off at all.

2. Identify some alternative level-measurement technologies which could be used to sense liquid level in this vessel, which aren’t affected by changes in liquid density.

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Credits: Tony R. Kuphaldt