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Grade 12th passPhysical Chemistry

One litre of Co2 is passed over hot Coke when the volume of the reaction mixture becomes 1.4 litre the composition of the reaction mixture is

Profile image of Sahil chalotra
9 Years agoGrade 12th pass
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1 Answer

Profile image of Vaishnavi Para
9 Years ago
dear sahil i just tried it but not sure whether its correct.
Equation of the reaction:
CO2 + C = 2CO
According to equation, when 1 litre of CO2 reacts with 1 mol of coke, twolitres of CO are formed. Our mixture of gases has volume 1.4 L. Thus it is
composed from CO and non-reacted CO2.
If x litres of CO2 are reacted, 2x liters of CO are formed. Total volume ofmixture is the sum of CO2 and CO volumes:
V(mixture) = V(new volume CO2) + V(CO) = 1.4 L
V(new volume CO2) = V(initial volume CO2) - V(reacted CO2) = (1 - x) L
V(CO) = 2x
So, we have equation:
1.4 = 1 - x + 2x
The solution is x = 0.4 L
Thus, the mixture consist from 1-0.4=0.6 L of CO2 and 2*0.4=0.8 L of CO (iii)
Answer: (iii)
The composition of product is 0.6 ltr of CO2 and 0.8 ltr of CO