Gujarat BoardEnglish MediumSTD 8ScienceCombustion and Flame2 Marks
Question
$\text{LPG}$ is a better domestic fuel than wood.
✓
Answer
$-$Its calorific value is higher than wood.
$-$It neither produces smoke nor does not leave any residue after burning, While wood produces a lot of smoke on burning and leaves behind ashes on burning.
$-$There is no control on the combustion of wood but we can control combustion of $\text{LPG.}$
$-\text{LPG}$ has low ignition temperature while wood has high ignition temperature, so it takes more time to start burning than $\text{LPG}$
$-$So $\text{LPG}$ is better domestic fuel than wood.
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