Question

LPG and CNG Has virtually no arsh particles left after burning​

Answer 1

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Compressed natural gas (CNG) (methane stored at high pressure) is a fuel that can be used in place of gasoline, diesel fuel and liquefied petroleum gas (LPG). CNG combustion produces fewer undesirable gases than the aforementioned fuels. In comparison to other fuels, natural gas poses less of a threat in the event of a spill, because it is lighter than air and disperses quickly when released. Biomethane — refined biogas from anaerobic digestion or landfills — can be used.

Answer 2

Answer:

LPG and CNG will not burn; LPG has higher ignition temperature than automative diesel and gasoline but not as a natural gas for vehicles. A much hotter source is therefore required for ignition of both when used as automative fuel