The pressure of the gas in this mercury manometer ( Figure 1 ) is about 864 mmHg
<h3>Further explanation</h3>
The basic formula of pressure that needs to be recalled is:
Pressure = Force / Cross-sectional Area
or symbolized:
<em>P = Pressure (Pa)</em>
<em>F = Force (N)</em>
<em>A = Cross-sectional Area (m²)</em>
Let us now tackle the problem !
In this problem , we will use Ideal Gas Law as follows:
<u>Given:</u>
height of mercury column = h = 89 mm
atmospheric pressure = Po = 775 mmHg
<u>Asked:</u>
the pressure of the gas = P = ?
<u>Solution:</u>
We will use Hydrostatic Pressure formula to solve this problem as follows:
<h3>Conclusion :</h3>
The pressure of the gas in this mercury manometer ( Figure 1 ) is about 864 mmHg
<h3>Learn more</h3>
<h3>Answer details</h3>
Grade: High School
Subject: Physics
Chapter: Pressure