The mean speed of Helium atoms is 4 times that of the molecules of a gas x at the same temperature. The molecular weight of x is

The mean speed of Helium atoms is 4 times that of the molecules of a g

1.	The mean speed of Helium atoms is 4 times that of the molecules of a gas x at the same temperature. The molecular weight of x is
Answer» 4 16 32 64 ANSWER :D