What relationship does Avogadro's law describe?

A. The relationship between pressure and temperature

B. The relationship between temperature and volume

C. The relationship between pressure and volume

D. The relationship between volume and moles

1. Gay-Lussacs law states that pressure is directly proportional to temperature

2. Charles law states that volume of a gas is directly proportional to temperature

3. Boyles law states that pressure of a gas is inversely proportional to volume.

4. Avagadro's law gives the relationship between moles and volume.

It states that at constant temperature and pressure, any 2 gases with equal volumes will contain equal number of molecules.

Can also be defined as volume occupied by any gas is directly proportional to number of moles of that gas.

V/n = k

where V - volume, n - number of moles and k - constant

Correct answer is D)