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Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 14 - Thermometry, Expansion and KTG > A narrow uniform glass tube 80 cm long and open at both ends is half immersed in mercury. Then the top of the tube is closed and it is taken out of mercury. A column of mercury 22 cm long then remains in the tube. What is the atmospheric pressure?

A narrow uniform glass tube 80 cm long and open at both ends is half immersed in mercury. Then the top of the tube is closed and it is taken out of mercury. A column of mercury 22 cm long then remains in the tube. What is the atmospheric pressure?

The value of pV/T for one mole of an ideal gas is nearly equal to.