Ammonia and Sulphur dioxide gases are prepared in two comers of a laboratory. Which gas will be detected first by a student working in the middle of the laboratory and why?
Molecular mass of NH3 = 17 Molecular mass of SO2 = 64 NH3 is a lighter gas and diffuses at a faster speed than SO2 ∴ NH3 gas will be detected first. [∵ Acc. to Graham’s law of diffusion r1/r2=√d2\d1
