Additional Practice problems.

1. Practice Problems
1. A science class puts a balloon
containing 3.01 L of air at 73 kPa into
a bell jar. Using an air pump, the class
removes some of the air in the jar,
causing the balloon to expand to a
volume of 5 L. Assuming a constant
temperature, what is the new pressure
inside the jar?
2. A small balloon is inflated with helium
at 102 kPa to a volume of 6.08 L.
According to the balloon’s manu-
facturer, if the balloon is stretched to a
volume of 3.25 L, the balloon will pop.
If the balloon were released, at what
pressure would the balloon pop?
Assume constant temperature through-
out.
Activity:
Compute for the following. Show
your computations and write your answers
on a one whole sheet of paper.
1. A gas occupies 71.6 L at 23 atm. What will
be the volume of this gas if the pressure
becomes 52 atm?
2. A gas occupies 13.9 liters at 81 atm. What
is the pressure if the volume becomes
15.0 L?
3. A gas occupies 1.35 liters at a pressure of
0.354 atm. Determine the volume if the
pressure is increased to 125 atm.
4. .At a sewage treatment plant, methane is
gathered for energy use. If 25 L of
methane is produced at 54 kPa, how
many liters would be produced at 10.1
kPa? Assume temperature remains
constant throughout.
5. A sample of carbon dioxide occupies a
volume of 1.50 liters at 12.9 kPa pressure.
What pressure would the gas exert if the
volume was decreased to 2.00 liters?
6. Helium occupies a volume of 11 liters at
43 Pa pressure. What would be the new
volume if the final pressure is 50 Pa?