Question

Why we use petrol or diesel in vehicles instead of using coal or any other fuel?

Answer 1

Some common properties of liquid fuels are that they are easy to transport, and can be handled with relative ease. Physical properties of liquid fuels vary by temperature, though not as great as for gaseous fuels. Some of these properties are: flash point, the lowest temperature at which a flammable concentration of vapor is produced; fire point, the temperature at which sustained burning of vapor will occur; cloud point for diesel fuels, the temperature at which dissolved waxy compounds begin to coalesce, and pour point, the temperature below which the fuel is too thick to pour freely. These properties affect the safety and handling of the fuel.

solid fuels are also heavier to transport, require more destructive methods to extract/burn and often have higher carbon, nitrate and sulphate emissions. With the exception of sustainable wood/biomass solid fuel is normally considered non-renewable as it requires thousands of years to form.disadvantages are high pollution heavier to transport



because of the great advantages of liquid fuels like petrol and diesel and the worst propertis of solid fuels such as above mentioned is the main reason to adapt liquid fuels in vehicles