When one arm of a U-tube manometer is connected to a gas supply, the levels of mercury in the two arms of the U-tube is shown in the figure above, if the atmospheric pressure is 76.0cm hg, the gas pressure is

Ephraim1

5 years ago

subtract 3.5 from 13.4 and add it to the atmospheric pressure

Anelie

4 years ago

Pressure of gas supply =pressure at D = Atmospheric pressure + pressure due to column of Mercury above D= 76cmHg+(13.4 - 3.5)cmHg = 85.9cmHg

eniyesimeon

1 year ago

why is myschool fond of asking questions involving diagrams without showing the diagram, are we supposed to imagine how the diagram looks like?

ZACAS_ICT

2 months ago

Make sure he\she you print your exam slip before 15 April, 2026.

De sage

1 year ago

@anelie you are wrong ok

gas pressure = A. P+h
G. p= 76+13.4=89.4

TeReTeRe

7 years ago

How is it D?