CH-582
Diffusion
Chemistry · Secondary 3 · Hard · Diffusion
In a diffusion experiment, gas X (relative molecular mass 16) takes 40 s to pass through a small hole. Gas Y takes 20 s under the same conditions. What is the relative molecular mass of gas Y? (Assume speed of diffusion is inversely proportional to relative molecular mass.)
- 4
- 8
- 16
- 32
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