A cylindrical vessel of 60 cm diameter and 80 cm height contains 3.2 kg of a gas. The pressure measured with manometer indicates 60 cm of Hg above atmosphere when barometer reads 760 mm of Hg. Find : (i) The absolute pressure of the gas in the vessel in bar, and (ii) Specific volume and density of gas.

A rigid, hermetically sealed container contains two fluids: water (103 kg / m3 ) and air. A pressure gauge, attached to the top of the tank, indicates a pressure 40 kPa vacuum gauge. If the atmospheric pressure of the place is 105 Pa and the water inside the container has a height of 30 cm, determine the absolute pressure at the bottom of the tank. Consider that the gravitational acceleration of the place is 9.8 m / s2 . a) 60 kPa b) 62.94 kPa c) 142.94 kPa d) 57.06 kPa

The water in a tank is pressurized by air, and the pressure is measured by a multifluid manometer as shown in the Figure. The elevation differences are  ,  , and  . The density of water, oil, and mercury are ,  ,  , respectively.  The gravitational acceleration is .  (2)Determine the correct expression of the gage pressure of the air in the tank__________   ***** I submitted this question earlier, and "C" is not the correct expression. I submitted that answer and it was wrong.*****