What is the pressure of the gas in this mercury manometer if h= 75 mm and the atmospheric pressure is 747 mmHg? Wha...

Question

Question

What is the pressure of the gas in this mercury manometer if h= 75 mm and the atmospheric pressure is 747 mmHg?

Answer 1

Answer #1

Atmospheric pressure = 747 mm of Hg

Since it is open manometer, it's pressure will change by difference in height of Mercury moved .

Total height = 747 + 75 mm = 822 mm

So total pressure should be 822 mm of Hg

Answer 2

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