Gases Chemistry Worksheet - Chapter 13, An Introduction To Chemistry Page 47
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Chapter Problems
Additional Problems
105. One balloon is filled with helium, and a second balloon is filled to the
same volume with xenon. Assuming that the two balloons are at the same
temperature and pressure and that the gases are ideal, which of the following
statements is true?
a. The helium balloon contains more atoms than the xenon balloon.
b. The helium balloon contains fewer atoms than the xenon balloon.
c. The two balloons contain the same number of atoms.
106.
Although the temperature decreases with increasing altitude in the troposphere
(the lowest portion of the Earth’s atmosphere), it increases again in the upper
portion of the stratosphere. Thus, at about 50 km, the temperature is back to
about 20 °C. Compare the following properties of the air along the California
coastline at 20 °C and air at the same temperature but an altitude of 50 km.
Assume that the percent composition of the air in both places is essentially the
same.
a. Do the particles in the air along the California coastline and the air at
50 km have the same average kinetic energy? If not, which has particles
with the higher average kinetic energy? Explain your answer.
b. Do the particles in the air along the California coastline and the air at
50 km have the same velocity? If not, which has particles with the higher
average velocity? Explain your answer.
c. Does the air along the California coastline and the air at 50 km have the
same average distance between the particles? If not, which has the greater
average distance between the particles? Explain your answer.
d. Do the particles in the air along the California coastline and the air at 50
km have the same average frequency of particle collisions? If not, which has
the greater frequency of between particle collisions? Explain your answer.
e. Does the air along the California coastline and the air at 50 km have the
same density? If not, which has the higher density? Explain your answer.
f. Does the air along the California coastline and the air at 50 km have the
same gas pressure? If not, which has the higher gas pressure? Explain your
answer.
107. Compare the following properties of air on a sunny 28 °C day at a Florida
beach to the properties of air along the coast of Alaska, where the temperature
is –4 °C. Assume that the barometric pressure is the same in both places and
that the percent composition of the air is essentially the same.
a. Do the air in Florida at 28 °C and the air at –4 °C in Alaska have the same
density? If not, which has the higher density?
b. Do the air in Florida at 28 °C and the air at –4 °C in Alaska have the same
average distance between the particles? If not, which has the higher average
distance between the particles?
108.
With reference to the relationships between properties of gases, answer the
following questions.
a. The pressure in the tires of a car sitting in a garage is higher at noon than at
midnight. Why?
b. The pressure in a car’s tires increases as it is driven from home to school.
Why?
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