🤓 Based on our data, we think this question is relevant for Professor Bindell's class at UCF.
The atmospheric pressure is 752 mm Hg. What is the pressure (atm) of the enclosed gas when h = 36.0 cm?
a) 1.463 atm
b) 0.9954 atm
c) 1.009 atm
d) 1.271 atm
e) 0.9826 atm
We’re being asked to determine the pressure of a gas (in atm) using an open-end manometer.
A manometer allows you to determine the pressure of a gas (Pgas) sample by using the atmospheric pressure (Patm) and the difference in the height of mercury (h).
Different conditions for an open-end manometer are illustrated below:
• When Pgas is pushing the same force as Patm
• When Pgas is pushing harder than Patm