One litre of co2 is passed over hot coke

Asked by admin @ 20/08/2021 in Chemistry viewed by 291 People

One litre of CO2 is passed through red hot coke. The volume becomes 1.4 litres at same temperature and pressure. The composition of products is

Answered by admin @ 20/08/2021

Chemical Equation:CO2 + C ----> 2CO

According to the problem, one litre of CO2 reacts with 1 mole of Carbon to produce 2litres of CO.
Given 1.4L is the mixtures of gases[CO+unreacted CO2].

If X litres of CO2 are reacts to give 2X litres of CO .

Total volume of mixture will be=CO2+CO
VolumesV (mixture)=V(new volume of CO2) +V (CO)=1.4L
V(new CO2)=V(initial Volume CO2)-V(reacted CO2)=(1-x)L
V(CO)=2x
so , we get
V(new volume of CO2) +V (CO)=1.4L
(1-x)+2x=1.41-x=1.41-1.4=X
X=0.4L
From ,V(new CO2)=V(initial Volume CO2)-V(reacted CO2)=(1-x)L
=1-0.4=0.6 L of CO2
Since V(CO)=2x
Volume of CO=2x0.4=0.8L of CO

Therefore, the composition of product is 0.6 litres of CO2 and 0.8 litres of CO.

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