A mixture of `H_(2) and O_(2)` in `2:1` volume is allowed to diffuse through a porous partition what is the composition of gas coming out initially

A porous tube containing a mixture of H_2 and O_2 is placed in a flask. After the diffusion for 25 seconds into the flask, what would be the composition of the gases in the flask?

A mixture of 50mL of H_(2) and 50mL of O_(2) is allowed to effuse through an effusiometer till the residual gas occupies 90 mL . What is the composition of ( a ) effused gas, ( b ) the residual gas?

A mixture of 50mL of H^(2) and 50mL of O^(2) is allowed to effuse through an effusiometer till the residual gas occupies 90 mL . What is the composition of ( a ) effused gas, ( b ) the residual gas?