一公升天然氣有幾多能量??

天然氣不是liquid
好難話佢1kg有幾多energy

事實上每燃燒一立方米天然氣可產生38兆Joule的能量。
（10.6kw-h）

Generally, 1 m^3 of natural gas, in combustion, gives off 39 x 10^6 Joules of energy.

Since there are 1000 litres in 1 m^3
thus, 1 litre of natural gas could give 39 000 Joules (or 39 kJ) of energy