What is the pressure of the gas in this mercury manometer if h = 53 mm and atmospheric pressure is 759 mmHg?

Given:

Atmospheric pressure = 759 mmHg

Height of manometer, h = 53 mm

To determine:

The gas pressure

Explanation:

The pressure of the gas can be calculated as follows-

P (gas) = P (atm) + h

where: P (atm) is the atmospheric pressure

h = column height

P (gas) = 759 + 53 = 812 mmHg

Ans: The pressure of gas in the mercury manometer is 812 mmHg