be much “harder” at high altitude since the external pressure is lower at high altitude. A “high altitude” ball will be “soft” at sea level. 5.Explain why the height of mercury is independent of the diameter of the mercury column. 6.How high in meters must a column of water be to exert a pressure equal to that of a 760 mm column of mercury? 7. A guage on a compressed gas cylinder reads 2200 psi (pounds per square inch; 1 atm = 14.7 psi). Express this pressure in each of the following units? a. atmospheres b. megapascals (Mpa) c. torr a. 150 atm b. 15 MPa c. 1.1 x 10 5 torr
8. If the atmospheric pressure is 0.975 atm, what is the pressure of the enclosed gas in each of the following cases: (Refer to the figure in the Worksheet) i. 0.29 atm ii. 1.063 atm iii. 0.136 atm 9.
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- Summer '08