$2 C O + O_{2} \to 2 C O_{2}$

$2 H_{2} + O_{2} \to 2 H_{2} O$

If 250 litres of water gas is burnt in air then the volume of oxygen used up is:

250 litres

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125 litres

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75 litres

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500 litres

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Solution

The correct option is C 125 litres
Total volume = $250 l i t$ $(10 + 12)$
$2 C O (2 \times 125 l i t) + O_{2} 125 l i t \to 2 C O_{2} (2 \times 125 l i t)$
$2 H_{2} (2 \times 125 l i t) + O_{2} 125 l i t ⟶ 2 H_{2} O (2 \times 125 l i t)$
Volume of $C O_{2} = 125 l i t$
Volume of $O_{2}$ consumed $= 125 l i t$
Volume of steam produced $= 125 l i t$

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Similar questions

2 C O + O_{2} \to 2 C O_{2}

2 H_{2} + O_{2} \to 2 H_{2} O

2 C O + O_{2} \to 2 C O_{2}

2 H_{2} + O_{2} \to 2 H_{2} O

C O_{2}

2 C O + O_{2} \to 2 C O_{2};

2 H_{2} + O_{2} \to 2 H_{2} O

O_{2}

2 C O + O_{2} \to 2 C O_{2}; 2 H_{2} + O_{2} \to 2 H_{2} O

Calculate the volume of oxygen at STP required for the complete combustion of 100 litres of carbon monoxide at the same temperature and pressure.

$2 C O + O_{2} ⟶ 2 C O_{2}$

(b) $200 c m^{3}$ of hydrogen and 150 cm of oxygen are mixed and ignited, as per the following reaction,

$2 H_{2} + O_{2} ⟶ 2 H_{2} O$ . What volume of oxygen remains unreacted?

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