Question

In the rocket mentioned previously in which hydrogen is used as a fuel, calculate the volume of hydrogen used to produce $24d{m}^3$ of water $\left(H_{2}O\right(g\left)\right)$.

• A. $12d{m}^3$
• B. $24d{m}^3$
• C. $21d{m}^3$
• D. none of these

Answer 1

The correct option is B $24d{m}^3$

$H_2+\frac{1}{2}{O}_2⟶H_2{O}_{\left(9\right)}$

By stichiometry, $1$ volume of $H_2$ produces 1 volume of $H_{2}O\left(g\right)$

$24d{m}^3$ of $H_2$ produces $24d{m}^3$ of $H_{2}O\left(g\right)$