Air contains 20% oxygen by volume. Calculate the theoretical volume of air which will be required for burning $200m^3$ of acetylene gas completely. All volumes are measured under the same conditions of temperature and pressure

Q. Under constant temperature and pressure $50\text{ml}$ of gaseous mixture of acetylene and ethylene if taken in a ratio of $a:b$ requires $700\text{ml}$ of air containing $20\%$ by volume $O_2$ for complete combustion. Calculate the volume of air required for complete combustion of a mixture having ratio $b:a$ at same conditions of temperature and pressure.

Q. Acetylene $\left[C_2{H}_2\right]$ burns in air forming carbon dioxide and water vapour. Calculate the volume of air required to completely burn $50c{m}^3$ of acetylene (Assume air contains 20 % oxygen):

Q. What is the volume of air required to completely burn $1L$ of $CO?$ Assume that all volumes are measured at the same temperature and pressure and also that air contains one-fifth by volume of $O_2$.

Q. Air contains nearly 20% oxygen by volume. The volume of air needed for complete combustion of 100 ml of acetylene will be :

Q. A gas mixture contains acetylene and carbondioxide. 20 litres of this mixture requires 20 litres of oxygen for complete combustion. If all gases are measured under similar conditions of temperature and pressure, the percentage of acetylene in the mixture is: