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LT 6A-6D Kinetic Molecular Theory and the Ideal Gas Law (2023) Flashcards | StudBud
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LT 6A-6D Kinetic Molecular Theory and the Ideal Gas Law (2023)
LT 6A-6D Kinetic Molecular Theory and the Ideal Gas Law (2023)
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Multiple choice practice for LT 6A-6B test: kinetic molecular theory, gas laws, and the atmosphere
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Answers
1
According to the kinetic theory, which of the following statements is FALSE?
Gas particles are extremely small compared to the distance between them
All gas particles move in straight lines until they collide
Gas particles are in constant, random motion
There are attractive and repulsive forces between gas particles
2
Which of the following gas variables describes FORCE due to COLLISIONS of particles with the walls of the container?
pressure (P)
temperature (T)
volume (V)
number of moles (n)
3
The UNIT of which variable should be used to chose R (the ideal gas constant) to solve PV = nRT?
pressure
temperature
moles
volume
4
Which of the following instruments is used to measure atmospheric (gas) PRESSURE?
barometer
thermometer
balance
graduated cylinder
5
How many
atmospheric circulation cells
are there in the
Northern Hemisphere
? (see diagram for reference)
1
3
6
12
6
Which of the following instruments could be used to measure the VOLUME of a gas?
barometer
balance
graduated cylinder
thermometer
7
Which of these will cause a DECREASE in the PRESSURE of a gaseous system?
Another gas is added to the container.
The temperature is increased.
Additional amounts of the same gas are added to the container.
The container is made larger.
8
Which layer of the atmosphere contains the ozone layer?
stratosphere
troposphere
mesosphere
exosphere
9
According to the kinetic molecular theory, which of the following statements is FALSE?
The particles of a liquid have higher KE and flow past each other.
Kinetic energy is the energy of movement (or motion).
The particles of a solid vibrate in place with low kinetic energy.
Only the particles of a liquid or gas are in motion, not solids
10
Which of the following gas variables describes the SPACE OCCUPIED by a sample of gas?
number of moles (n)
pressure (P)
volume (V)
temperature (T)
11
Which of the following gas variables describes the AVERAGE KINETIC ENERGY or MOTION of particles?
pressure (P)
temperature (T)
number of moles (n)
volume (V)
12
Which layer of the atmosphere is densest, closest to Earth's surface and where weather occurs?
exosphere
stratosphere
troposphere
mesosphere
13
Which of the following instruments is used to measure the TEMPERATURE of a gas?
graduated cylinder
barometer
balance
thermometer
14
Which of the following gas variables describes the NUMBER of PARTICLES of a gas that are present in a sample?
pressure (P)
number of moles (n)
volume (V)
temperature (T)
15
Which of the following expresses the gaseous composition of the atmosphere?
33% N2 33%O2 33%CO2 & H2O
50% N2 49% O2 1% CO2
78% N2 21% O2 1% other
78% O2 21% N2 1% other
16
Convert 20
o
C to Kelvin using the formula K =
o
C + 273
253 K
0 K
100 K
293 K
