Question

what is the correct order of rate of diffusion of H2 ,He,Nh3,O2 is​

Answer 1

Answer:

Explanation:

diffusion is inversely proportional rto molecular weight

therfore

NH3 = 14+3(1) = 17

N2    =  2(14)    = 28

CO2  = 12 + 2(160 = 44 

O2     = 2(16)          = 32

Therefore NH3 has the highest diffusion rate 

Hope it helps

Answer 2

Solution : The correct order of the rate of diffusion is $H_{2} > NH_{3} > N_{2} > O_{2}$

• Diffusion is the phenomena where there is a movement of one material move from area of high concentration to area of low concentration.
• Graham's Law of diffusion says that at a given temperature and pressure the rate of diffusion is inversely proportional to the square root of its molar mass.
• So the gas with the lower molecular mass will diffuse faster as compare to the gas with higher molecular mass
• Here the molecular mass of $H_{2}$ is 2 , molecular mass of $N_{2}$ is 28 , molecular mass of $O_{2}$ is 32 , molecular mass of $NH_{3}$ is 17.
• The molecular mass of $H_{2}$  is lowest so ir will diffuse faster and molecular mass of $O_{2}$ is largest so it will diffuse slower.

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