Which will diffuse faster ,ammonia or CO2? what are their relative rates of diffusion.

1. Diffusion depends on several factors namely temperature,density and concentration.
2. Density for Ammonia(gas) at STP is 0.73 kg/m3 and for Carbon dioxide is 1.98 kg/m3.
3. Thus,as CO2 will diffuse faster due to higher density as compared to NH3.
4. Relative Rate of Diffusion :

        rNH3rCO2 = mCO2mNH3=17.044=0.38

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Which will diffuse faster ammonia or carbon dioxide . What are their relative rates of diffusion
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