What is the law in which under the same conditions of temperature and pressure, equal volumes of all gas contain equal number of molecules

What is the law in which under the same conditions of temperature and

1.	What is the law in which under the same conditions of temperature and pressure, equal volumes of all gas contain equal number of molecules
A.	Colioli effect
B.	Grahams law
C.	Pascal's law
D.	Avogadro's law
Answer» E.