The balanced chemical equation for the thermal decomposition of heptane is given.

C₇H₁₆ (l) → C₄H₁₀ (g) + C₃H₆ (g)

a) Which of these components can be used as LPG?

b) In which state is the component collected and stored?

a) Butane

C₇H₁₆ (l) → C₄H₁₀ (g) + C₃H₆ (g)

Heptane Butane Propene

i. Liquefied petroleum gas (LPG) is obtained from butane gas.

ii. When butane gas is liquefied under high pressure, LPG is obtained.

iii. Butane gas is separated from uncondensed gases obtained from petroleum and then can be converted to LPG.

b) In the gaseous state, butane is collected and stored.