Principles of Chemical Engineering
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When using a U-tube manometer to measure pressure differences, the greater the density of the liquid used as an indicator, the A. lower the reading of the manometer (referring to the height of the liquid column), B. unchanged, C. higher, or D. indeterminable"
It definitely gets smaller. At constant pressure, the higher the density, the lower the height
f=ρgh; as the density ρ increases, the pressure f remains unchanged, and thus the reading (the height of the liquid column h) decreases.
The smaller it is, the greater the density, and thus a higher pressure is required to bring it back to its original value
This post was last edited by 1111111 on 2019-5-10 17:03. As an extra question posed by that cowardly teacher – how many people are still using U-tubes to measure differential pressure these days? The greater the density of a liquid, the greater the pressure corresponding to each unit of scale. Is this something worth turning into a question? ........... Ugh, that’s really bad. Hey guys, I have an interesting question for you: It’s going to rain tomorrow. What color underwear do you think your teacher will be wearing tomorrow? That will make you feel the best {:2_36:}.
As density increases, the reading decreases at constant pressure.