The water manometer above is measuring the pressure of ga...
The water manometer above is measuring the pressure of gas supply. if the specific gravity of mercury is 13.6 and the atmospheric pressure is 70cm of mercury what is the total pressure of the gas supply in cm of water
67cm
73cm
949cm
952cm
955cm
Correct answer is E
Atmospheric pressure = 70cmHg (which is the height of mecury)
pressure = pgh = pwghw
Where
Pw = density of water
hw = height of water
ph = pwhw
13.6*70 = 1*hw
hw = 952cm
Pressure of gas in cm of water = 952 + 3 = 955cm
Similar Questions
Workdone on an object to bring it to a certain point in space is called ...
Which of the following is used as a depolarizer in a Denial cell? ...
Two bodies have masses in the ratio3:1. They experience forces which impart to them, accel...
Which of the following obeys ohms laws? ...
Which of the following explains the concave meniscus of water in a clean glass tube? the ...
If a room is saturated with water vapour, the temperature of the room must be ...