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One litre of mixture of CO and CO(2) is ...

One litre of mixture of `CO` and `CO_(2)` is passed through red hot charcoal in tube. The new volume becomes 1.4 litre. Find out % composition of mixture by volume. All measurements are made at same `P` and `T`

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At the same temperature and pressure volumeof a gas `prop` No.of moles(n) . So, when the gas mixture is passed through a red hot charcoal tube then `CO_(2)+Crarr2CO`. So, if there was (say) ‘x’ litre of `CO_(2)` in the mixture then the volume of CO formed will be '2x'. Also, volume of CO in the mixture would be `(1 - x)`. So, total volume of CO finally becomes `(1-x)+2x=1+x=1.4` litre . So, the volume of originally will be 0.4 litre and CO will be 0.6 litre.
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