Question

LPG has high calorific value but CNG has less than it . Even though why cng is a better fuel .

Answer 1

CNG is a clean-burning fuel. It is actually the cleanest of all fossil fuels. Since natural gas is composed mainly of methane, burning it produces carbon dioxide and water vapor. These are the same compounds we exhale when we breathe. Meanwhile LPG produces higher carbon emissions, nitrogen oxides and sulfur dioxide.