Question

A certain gas effuses through a small opening of a vessel
at a rate which is exactly one-fifth the rate at which
helium does the same. Thus, the molecular weight of
the gas is
(a) 100
(b) 75
(c) 50
(d) 25

Answer 1

Answer:

25

Explanation:

100 / (1/5)

= 100/5

= 25