Nov
08
What is the pressure in atmosphere in the cabin if the barometer reading is 688mm Hg?
ByThe pressure outside a jet plane flying at high altitude falls considerably below standard atmospheric pressure.Therefore, The air inside the cabin must be pressurized to protect the passengers. What is the pressure in atmosphere in the cabin if the barometer reading is 688 mm Hg?
2 Comments
November 8th, 2009 at 10:41 am
0.905263158 atm
November 8th, 2009 at 11:15 am
pressure of 1 atm at STP = 760mm Hg
Pressure in plane = 688/760 = 0.905 atm.