Pressure Units Practice Problems

In 1855, the first soccer ball was created by Charles Goodyear using vulcanized rubber. If an average soccer ball can be filled with 5.55 L of air, determine the mass of air in kilograms required to fill the soccer ball at STP.

Phosphine (PH₃) gas is widely used in plastic industries. A closed vessel contains 3.75 L of gaseous PH₃ at STP. Calculate the number of moles of PH₃ present in the vessel.

The barometric pressure at the West Coast Trail is 758 mmHg. Express this pressure in Torr (3 sig. figs.). 

A gas cylinder contains helium at a pressure of 200. atm. Convert the pressure to pounds per square inch. 

In an area just above Cusco during a Machu Picchu trek, the pressure decreased to 480 mmHg. Determine the pressure at this level in terms of Pascal (Pa).

A cylinder holds N₂ at a pressure of 150. atm. Determine its pressure in terms of kilopascals.

The phase diagram of carbon dioxide is illustrated in the following figure.

Is skating on dry ice, which is solid carbon dioxide, possible?

The following figure is the phase diagram for water.

How is skating on ice, which is solid water, possible?

True or false. The four common units for measuring pressure are atm, bar, mmHg, and Pa.

Convert the 29.2 inHg (inches of mercury) barometer reading to torr and atm.

Convert the pressure 724.6 mmHg to atm.

If the atmospheric pressure is 725 mmHg, what would this pressure be in inches of Hg?

The average pressure at the summit of Mt. Fuji is 469.7 mmHg. Convert this pressure to:

1.) torr

2.) psi

3.) inHg

4.) atm