Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Why is carbon dioxide used in fire extinguishers?
[2 Marks]

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Carbon dioxide is used in fire extinguishers for various reasons. They are as follows:
$\bullet$ Itdoes not support combustion.
[0.5 Marks]
$\bullet$ It displaces the oxygen which is necessary to maintain combustion. [0.5 Marks]
$\bullet$ It being heavier than oxygen covers the fire like blanket. [0.5 Marks]
$\bullet$ It also has a cooling effect when released under high pressure. [0.5 Marks]