Other Chemical Fuels (Leaving Cert Chemistry): Flashcards

$C_2H_2$

Calcium carbide ($CaC_2$)

$CaC_2 + 2H_2O \rightarrow C_2H_2 + Ca(OH)_2$

Luminous, smoky flame

Incomplete combustion produces carbon particles

Unsaturated (contains C-C triple bond)

Orange colour disappears

Decolorises purple solution

Over 3000°C

Hydrogen and oxygen gases

$2H_2O(l) \rightarrow 2H_2(g) + O_2(g)$

Methane

$CH_4 + H_2O \rightarrow CO + 3H_2$

Haber process

$2H_2 + O_2 \rightarrow 2H_2O$