Question

One litre of ${CO}_2$ is passes over hot coke. After one hour volume becomes $1.4lItres$. Composition of product is:

• A. 0.6 litre ${CO}_2$
• B. 0.8 litre ${CO}_2$
• C. 0.6 litre ${CO}_2$ and 0.8 litre CO
• D. None of these

Answer 1

The correct option is C 0.6 litre ${CO}_2$ and 0.8 litre CO

$1$ litre of $C{O}_2$ which gives $2$ litres of $CO$.

$x$ litres of $C{O}_2$ gives $2x$ litres of $CO$.

Total volume of mixture $=C{O}_2+CO$.

$V_{mix}=V_{(NewC{O}_2})+V_{(CO})=1.4L$

$V_{(NewC{O}_2})=(1-x)L$

$V_{\left(CO\right)}=2x$

Hence, $1-x+2x=1.4\Rightarrow x=0.4L$

So, Volume of $C{O}_2=(1-0.4)L=0.6L$

Volume of $CO=2\left(0.4\right)L=0.8L$