Q. When is passed over red hot coke it partially gets reduced to . Upon passing of over red hot coke, the total volume of the gases increased to . The composition of the gaseous mixture at is

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Solution:


Stoichoimetry ratio is
AT atm,
Initial moles of ( initial)
mole
In final mixture no. of moles; ( mixture)

Increase in volume is by
mole of gas
Final no. of moles of i.e.



Now,

Substituting in eq.



Volume of

and volume of