Question

Out of two gases carbon dioxide and methane which gas would diffuse rapidly

Answer 1

Hey There!  
This question is based on Graham's Law of Diffusion.   
Graham's Law states that The Rate of Diffusion is inversely proportional to the square root of Molecular Mass of the Gas . 
This means that smaller the molecular mass, higher is the rate of diffusion.  
Here, Molecular Mass of Methane is 16 grams per mole, while that of Carbon Dioxide has a mass of 44 grams per mole.

Since Methane has a smaller molecular mass, it will be diffused more rapidly.

Hope it helps
Purva  
Brainly Community

Answer 2

I think methane because gases moves from higher concentration to lower concentration and co2 is denser gas so it has less chance to diffuse rapidly