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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?
V2 = [V1][P1]
V2 = [2.400L][101.70KPa] = 2.412L
[P2]
[101.01KPa]
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?
P2 = [V1][P1]
P2 = [100.0 mL][101.3KPa] = 169 KPa
[V2]
[60.0 mL]
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?
P2 = [V1][P1]
P2 = [0.225L][800.0 KPa] = 150 KPa
[V2]
[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?
P2 = [V1][P1]
V2 = [930cm3 ][101.3 KPa] = 810 KPa
[V2]
[930/8cm3]
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?
V2 = [V1][P1]
V2 = [10.0 dm3][500.0KPa] = 7.11 dm3
[P2]
[702.6KPa]
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