Consider the following statements regarding the differences between Liquefied Petroleum Gas (LPG) and Compressed Natural Gas (CNG). Select the incorrect statement.

Question

Physics · Thermodynamics

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

CNG has a higher energy content (calorific value per unit mass) than LPG.

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Answer 1

Compressed Natural Gas is mainly methane, while Liquefied Petroleum Gas is a mixture of propane and butane.

Answer 2

CNG has a higher energy content (calorific value per unit mass) than LPG.

Answer 3

CNG is lighter than air, while LPG is heavier than air.

Answer 4

For proper combustion, LPG requires an air-to-gas ratio of approximately 25 : 1, while CNG requires an approximate ratio of 10 : 1.

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