Question

Which of the following pairs will diffuse at the same rate through a porous plug?

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Answer 1

Hi mate

Question

Which of the following pairs will diffuse at the same rate through a porous plug?

A) CO,NO2

B) NO2,CO2

C) NH3,PH3

D) NO,C2H6

Answer:

Option (D) NO,C2H6 is your answer

Reason:

According to grahm's law of diffusion Molecular weight is inversely proportional to rate of diffusion.It means that those molecules which has same molecular weight can diffuse the at same rate. In the bove option D has the same molecular weight for both NO,C2H6 that is 28.

Hence option D is correct.

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Answer 2

(D) NO, $C_{2}H _{6}$  is the correct answer to the mentioned question. It will diffuse at the same rate through a porous plug.

As per Grahm's diffusion law, The rate of diffusion is inversely related to the molecular weight. That is, molecules of the same molecular weight can diffuse at the same pace. Both NO,C2H6 and D have the same molecular weight of 28 according to the given option.