Q. For the reaction, $Fe_{2}O_{3} + 3CO \rightarrow 2\ Fe + 3CO_{2}$ the volume of carbon monoxide required to reduce one mole of ferric oxide is
A) 22.4 $dm^{3}$
B) 44.8 $dm^{3}$
C) 67.2 $dm^{3}$
D) 11.2 $dm^{3}$
Explanation
(c)
$Fe_{2}O_{3} + 3CO \rightarrow 2Fe + 3CO_{2}$
1 mol 3 mol
Volume of 1 mole carbon monoxide
=22.4 L (at STP)
1 mole of ferric oxide is reduced by=3 moles of CO
$= 3 \times 22.4\ L\ of\ \ CO$
$\ \ \ \ \ = 67.2\ dm^{3}\ of\ CO$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.