Acetylene $[C_{2} H_{2}]$ burns in air forming carbon dioxide and water vapour. Calculate the volume of air required to completely burn $50 c m^{3}$ of acetylene (Assume air contains 20 % oxygen):

525 c m^{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

600 c m^{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

500 c m^{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

625 c m^{3}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $625 c m^{3}$
Reaction:
$2 C_{2} H_{2} + 5 O_{2} ⟶ 4 C O_{2} + 2 H_{2} O$
2 5
$2$ volumes of acetylene reacts with $5$ volumes of oxygen

So oxygen required is $50 \times 5 / 2 = 125 c m^{3}$ .

As air contains $20$ % oxygen only so volume of air required will be $\frac{125 \times 100}{20} = 625 c m^{3}$

Suggest Corrections

Similar questions

What volume fo oxygen would be required to burn completely 400 ml. of acetylene $[C_{2} H_{2}]$ Also, calculated the volume fo carbon dioxide formed.
$2 C_{2} H_{2} + 50_{2} \to 4 C O_{2} + 2 H_{2} O (l)$

Q. What volume of oxygen would be required to burn completely 200 ml of acetylene

(C_{2} H_{2})

, and what would be the volume of carbon dioxide formed?

Q. Air contains 20% oxygen by volume. Calculate the theoretical volume of air which will be required for burning

200 m^{3}

of acetylene gas completely. All volumes are measured under the same conditions of temperature and pressure

Q. What volume of oxygen would be required to burn completely 400 ml of acetylene(

C_{2} H_{2}

Q. What volume of air (containing 20%

O_{2}

by volume) will be required to burn completely

10 c m^{3}

each of methane and acetylene.

C H_{4} + 2 O_{2} ⟶ C O_{2} + 2 H_{2} O

2 C_{2} H_{2} + 5 O_{2} ⟶ 4 C O_{2} + 2 H_{2} O

Join BYJU'S Learning Program

Acetylene [C2H2] burns in air forming carbon dioxide and water vapour. Calculate the volume of air required to completely burn 50cm3 of acetylene (Assume air contains 20 % oxygen):

The correct option is D 625cm3Reaction:2C2H2+5O2⟶4CO2+2H2O 2 52 volumes of acetylene reacts with 5 volumes of oxygen So oxygen required is 50×5/2=125cm3 . As air contains 20% oxygen only so volume of air required will be 125×10020=625cm3

Acetylene $[C_{2} H_{2}]$ burns in air forming carbon dioxide and water vapour. Calculate the volume of air required to completely burn $50 c m^{3}$ of acetylene (Assume air contains 20 % oxygen):