gases

Question 1

Boyle’s Law

Answer 1

The volume of a fixed
quantity of gas at constant
temperature is inversely
proportional to the
pressure. (P1V1=P2V2)

Question 2

Charles’ Law

Answer 2

The volume of a fixed
amount of gas at constant
pressure is directly
proportional to its absolute
temperature. (V1/T1=V2/T2)

Question 3

Avogardo’s Law

Answer 3

The volume of a gas at
constant temperature and
pressure is directly
proportional to the number
of moles of the gas. (V1/N1=V2/N2)

Question 4

Combined Gas Law

Question 5

Ideal Gas Law

Answer 5

PV=nRT

Question 6

Gay-Lussac’s Law

Answer 6

At a given temperature and pressure, the volume of
gases that react with each other is in small whole
numbers. (P1/T1=P2/T2)
• Example: two volumes of hydrogen gas and one volume
of oxygen gas will make two volumes of water vapor.

Question 7

Dalton’s Law of Partial Pressure

Answer 7

If two gases that don’t react are combined in a container, they act as if they are alone in the container.
• The total pressure of a mixture of gases equals the sum of the pressures that each would exert if it were present
alone.

Question 8

KMT

Answer 8

Gases consist of large numbers of molecules that are in
continuous, random motion.
The combined volume of all the molecules of the gas is
negligible relative to the total volume in which the gas is
contained.
Attractive and repulsive forces between gas molecules
are negligible.