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Kinetic Molecular Theory Form
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1. According to the kinetic molecular theory, which statement explains why an ideal gas can be compressed to a smaller volume?
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(1) The motion of the gas particles is circular and orderly.
(2) The force of attraction between the gas particles is strong.
(3) As the gas particles collide, the total energy of the system decreases.
(4) The gas particles are separated by great distances relative to their size.
2. Under which conditions of temperature and pressure does a sample of propane behave least like an ideal gas?
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(1) 250. K and 1.0 atm
(2) 250. K and 5.0 atm
(3) 500. K and 1.0 atm
(4) 500. K and 5.0 atm
3. Which statement describes the particles of an ideal gas, based on the kinetic molecular theory?
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(1) There are attractive forces between the particles.
(2) The particles move in circular paths.
(3) The collisions between the particles reduce the total energy of the gas.
(4) The volume of the gas particles is negligible compared with the total volume of the gas.
4. Under which conditions of pressure and temperature is a real gas most like an ideal gas?
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(1) low pressure and low temperature
(2) low pressure and high temperature
(3) high pressure and low temperature
(4) high pressure and high temperature
Identify the correct gas based on the description on the following grid:
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He
H
HCl
NH₃
SF₆
CO₂
Lightest Gas
Fastest moving Gas
lowest density
Most Ideal Gas
Heaviest Gas
Slowest moving Gas
greatest density
Most Real
He
H
HCl
NH₃
SF₆
CO₂
Lightest Gas
Fastest moving Gas
lowest density
Most Ideal Gas
Heaviest Gas
Slowest moving Gas
greatest density
Most Real
5. Given the following KMT distribution Graph, Identify which gases are CO₂, NH₃, and He.
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Gas A
Gas B
Gas C
Most Ideal Gas
Most REAL Gas
Gas with greatest attractive forces
CO₂,
NH₃,
He
Gas A
Gas B
Gas C
Most Ideal Gas
Most REAL Gas
Gas with greatest attractive forces
CO₂,
NH₃,
He
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