Air contains `20%` oxygen by volume. Calculation the theoretical volume of air which will be required for burning completely 200 cubic m of acetylene gas `(C_(2) H_(2))`All volumes are measured under the same conditions of temperature and pressure.

Explanation

To solve the problem of determining the theoretical volume of air required to completely burn 200 cubic meters of acetylene gas (C₂H₂), we can follow these steps:

### Step 1: Determine the moles of acetylene (C₂H₂)
We know that at standard temperature and pressure (STP), 1 mole of any gas occupies 22.4 liters. First, we convert 200 cubic meters of acetylene to liters:

\[ 200 \, \text{m}^3 = 200 \times 1000 \, \text{liters} = 200,000 \, \text{liters} \]
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