How much volume of oxygen will be required for complete combustion of 40 mL of acetylene `(C_(2)H_(2))` and how much volume of carbon dioxide will be formed? All volumes are measrued at NTP.

Explanation

`{:(2C_(2)H_(2),+,5O_(2),=,4CO_(2),+,2H_(2)O),("2vol",,"3vol",,"4vol",,),(40mL,,(5)/(2)xx40mL,,(4)/(2)xx40mL,,),(40mL,,100mL,,80,,):}`
So, for complete combustion of 40mL of acetylene, 100 mL of oxygen are required and 80mL of carbon dioxide is formed.