Question 7
Gas LawsThe densities of two gases, X and Y, are 0.5 g dm-3 and 2.0 g dm-3 respectively. What is the rate of diffusion of X relative to Y?
- A.0.1
- B.0.5
- C.2.0
- D.4.0
Show the answer and explanation
Answer: C (2.0)
Explanation
Graham's law: rate is inversely proportional to √density. Rate X/rate Y = √(2.0/0.5) = √4 = 2.0.