Question

X ml of H2 gas effuses through a hole in a container
in 5 sec. The time taken for the effusion of same
volume of gas specified below under identical
conditions is

Answer 1

Answer:

Answer is option (2) 20seconds, Oxygen

Explanation:

Molecular mass of Hydrogen is 2 and that of oxygen is 32

We know that, the time taken for effusion is indirectly proportional to the Square root of molecular mass

rate of effusion a 1/ square root of molecular mass

rate of H2 / rate of O2 = Square root of 32/ Square root of 2

rate of H2 / rate of 02 = 5.66/ 1.41 = 4

rate of 02 = 4 times the rate of H2

=>4.5 = 20 seconds

It is given that oxygen takes 20 seconds for effusion. Hence verfied

Explanation:

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