1. If the average atmospheric pressure at sea level can support 10.34 m of vertical length of a water column, then its magnitude is about _______ Pa. Assume density of water = 1 g cm−3 and gravitational acceleration = 9.8 m s−2.   100000   1000   10000   100   Hint Half-n-half Clue   2. To measure the atmospheric pressure, the space (labeled A) above the mercury level in a barometer tube is   essentially vacuum   filled with nitrogen   filled with water   filled with air   Half-n-half Clue   3. Which is the 'odd one out'?   Pa   bar   N   mm Hg   Half-n-half Clue   4. _______ is a type of barometer that consists essentially of a thin metal box exhausted of air.   Anemometer   Hydrometer   Manometer   Aneroid   Half-n-half Clue   5. 20 litres of a gas at a pressure of 4 bar are compressed to 5 litres without any change in the temperature. The final pressure of the gas is about   1.25  bar   16.0  bar   20  bar   1.00 bar   Half-n-half Clue   6. Air is trapped in the space (labeled A) above the mercury level in the tube of a barometer, which measures 745 mm Hg. If the atmospheric pressure is 760 mm Hg, then the pressure of the trapped air is   745 mm Hg   15 mm Hg   760 mm Hg   between 745 and 760 mm Hg   Half-n-half Clue   7. 3 bars = _______ Pascals   0.0003   30000   300000   3e-05   Half-n-half Clue