If 30cm3 of oxygen diffuses through porous plug in 7s, how long will it take 60 cm3 of chlorine to diffuse through the same plug?
- 12s
- 14s
-
21s
- 30s
The correct answer is: C
Explanation
(R)o/(R)a √(M)a/(MO (30/7)/(60/t) = √ (35.5)/(16)(60/t) (30/7)/ √(35.5)/(16) t = (60/30)/(7) x (4)√35.5
t = (60 x 7 x √35.5)/(30 x 4) = 21s