Question

Write the full form of the following
 (a) LPG
  (b)CNG

Answer 1

Hint: LPG and CNG are both gases and are present along with the fossil fuels in the earth’s crust . LPG stands for Liquefied Petroleum Gas and CNG stands for Compressed Natural Gas.

Complete step-by-step answer:
Both of them are gases which are used as fuels . They are present above the fossil fuels like coal and petroleum. They both have high calorific value and hence can be used for various purposes. LPG stands for Liquefied Petroleum Gas and CNG stands for Compressed Natural Gas. Though both are present along fossil fuels in earth’s crust.
There are some basic differences between the two :
>CNG consists mainly of methane while LPG consists of mainly propane and butane.
>CNG fuel is in gaseous state while LPG fuel is in liquid state.
>CNG when burnt produces a fewer amount of harmful gases while LPG when burnt produces comparatively larger amounts of harmful gases.
>CNG requires more space for storage while LPG requires less space for storage.
>CNG is typically used in automobiles while LPG is often used in the refrigeration , agricultural and catering industries.

Note: Both of these are used as fuels but before that they both have to go several refinement processes before they can be used . In terms of economy , the cost of LPG is more than that of CNG.
LPG is available in lesser quantity in earth’s crust and hence it is costlier.