4. (a) What does LPG stand for?(b) What does CNG stand for?

1.	4. (a) What does LPG stand for?(b) What does CNG stand for?
Answer» a)Liquefied petroleum gasorliquid petroleum gas(LPGorLP gas), also referred to as simplypropaneorbutane, areflammablemixtures ofhydrocarbongases used asfuelinheating appliances, cooking equipment, and vehicles. b)Compressed natural gas(CNG) (methane stored at high pressure) is a fuel which can be used in place ofgasoline,diesel fuelandpropane/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 aspill, because it is lighter than air and disperses quickly when released.Biomethane– cleaned-upbiogasfromanaerobic digestionorlandfills– can be used.

Answer»

a)Liquefied petroleum gasorliquid petroleum gas(LPGorLP gas), also referred to as simplypropaneorbutane, areflammablemixtures ofhydrocarbongases used asfuelinheating appliances, cooking equipment, and vehicles.

b)Compressed natural gas(CNG) (methane stored at high pressure) is a fuel which can be used in place ofgasoline,diesel fuelandpropane/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 aspill, because it is lighter than air and disperses quickly when released.Biomethane– cleaned-upbiogasfromanaerobic digestionorlandfills– can be used.

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