# Problem of manometry. Is it resolved correctly?

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1. Mar 13, 2015

### Queren Suriano

1. The problem statement, all variables and given/known data

The tank shown in the figure is located in a place with a
atmospheric pressure (90 kPa abs).
If X = 3.50 m, Y = 1.80 m and the vapor pressure of the alcohol is
13 kPa (abs), determine:
1) manometer reading "A" in KPa.
2) The height "h" of mercury manometer.

2. Relevant equations

3. The attempt at a solution
I have did this:
Equating P(A) = P (alcohol) + 0.035 (Salcohol) ([PLAIN]http://upload.wikimedia.org/math/3/3/4/334de1ea38b615839e4ee6b65ee1b103.pngwater [Broken])
P(A) = -76.97 kPa. (Using P(alcohol)= Palchol abs -Patm = -77 kPa)

Equating

Solving for "h"
h=0.124 m

Last edited by a moderator: May 7, 2017
2. Mar 13, 2015

### rude man

What do "S" and "γ"? stand for?

3. Mar 13, 2015

### haruspex

The combination of showing work in numerical form instead of symbolic, yet not showing what values you areusing for constants, makes it very hard to follow. Please post your working in purely symbolic form, until the final step, and state what values you are using for g, atm, alcohol's SVP, and the densities.