20ml of a mixture of CO & H2 were mixed with excess of O2 & exploded & cooled. There was a volume contraction of 23ml. All volume measurements correspondence to room temperatue (27 degreeC) and one atmospheric pressure. Determine the volume ratio V1 : V2 of CO & H2 in the original mixture
(A) 6.5 : 13.5
(B) 5 : 15
(C) 9 : 11
(D) 7 : 13
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Hi mate! The answer is (D) 7 : 13
Before you look at the attachment, I would assume that you know the approach to this problem. If not, let me then explain it.
Just like we can solve problems by not considering the moles of the participants of a reaction, we use pressure, keeping volume and temperature constant, here in this problem, the same can be done for volume (while keeping the pressure and temperature constant).
Another thing that must be taken in account is that in here, O2 is in excess, which basically means that in each reaction here, the reagent will completely use up the moles of O2 to form into a product. Thus the no. of moles of O2 used is completely dependent upon the reagent.
I hope you understood it my friend. If not, you can ask me in the comments.
Jai Hind!!
Before you look at the attachment, I would assume that you know the approach to this problem. If not, let me then explain it.
Just like we can solve problems by not considering the moles of the participants of a reaction, we use pressure, keeping volume and temperature constant, here in this problem, the same can be done for volume (while keeping the pressure and temperature constant).
Another thing that must be taken in account is that in here, O2 is in excess, which basically means that in each reaction here, the reagent will completely use up the moles of O2 to form into a product. Thus the no. of moles of O2 used is completely dependent upon the reagent.
I hope you understood it my friend. If not, you can ask me in the comments.
Jai Hind!!
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