GAS LAWS PROBLEMS

Gas Laws with One Term Constant

1. A sample of gas has an initial volume of 25 L and an initial pressure of 3.5 atm. If the pressure changes to 1.3 atm, find the new volume, assuming that the temperature remains constant.

2. A sample of neon is at 89oC and 123 kPa. If the pressure changes to 145 kPa and the volume remains constant, find the new temperature, in oC.


Boyle's Law Problems

1. The volume of the lungs is measured by the volume of air inhaled or exhaled. If the
volume of the lungs is 2.400 L during exhalation and the pressure is 101.70 KPa, and the
pressure during inhalation is 101.01 KPa, what is the volume of the lungs during inhalation?



2. The total volume of a soda can is 415 mL. Of this 415 mL, there is 60.0 mL of headspace
for the CO2 gas put in to carbonate the beverage. If a volume of 100.0 mL of gas at
standard pressure is added to the can, what is the pressure in the can when it has been
sealed?



3. It is hard to begin inflating a balloon. A pressure of 800.0 Kpa is required to initially inflate
the balloon 225.0 mL. What is the final pressure when the balloon has reached it's capacity
of 1.2 L?



4. If a piston compresses the air in the cylinder to 1/8 it's total volume and the volume is
930 cm3 at STP, what is the pressure after the gas is compressed?



5. If a scuba tank that has a capacity of 10.0 dm3 is filled with air to 500.0 KPa, what will be
the volume of the air at 702.6 KPa?