Question

1. the kinetic molecular theory is used to explain each of the experimentally - determined gas laws.

true
false

1. the term \______\ refers to the individual chemical species that compose a gas.
2. gas molecules have a large number of...

a) empty spaces
b) surfaces
c) contaminants
d) nucleus

1. the molecules of a gas are in constant and random motion.

true
false

1. what happens to the energy of the system when the molecules collide with each other?

a) energy increases
b) energy decreases
c) energy remains the same

Explanation:

1. The kinetic - molecular theory is used to explain gas laws, so the statement in 1 is True.
2. The term "gas molecule" refers to the individual chemical species that compose a gas.
3. Gas molecules have a large number of empty spaces between them.
4. According to the kinetic - molecular theory, gas molecules are in constant and random motion, so the statement in 4 is True.
5. In an elastic collision (assumed in ideal gas behavior), the total energy of the system remains the same when gas molecules collide with each other.

Answer:

1. True
2. Gas molecule
3. A. empty spaces
4. True
5. C. energy remains the same