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12y ago

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What is the difference between the burning temperature of diesel and petrol?

The burning temperature of diesel is higher than that of petrol. Diesel ignites at a higher temperature compared to petrol.


Why diesel cheaper than petrol?

In the United States diesel is not cheaper than petrol or gasoline, it is higher.


What produces more energy a liter petrol or disel?

Diesel fuel produces more energy per liter compared to petrol (gasoline). This is primarily due to its higher energy density and the fact that diesel engines operate at a higher compression ratio, making them more efficient. On average, diesel contains about 10-15% more energy than petrol, which contributes to better fuel economy in diesel engines.


What is the density of diesel?

The density of petroleum diesel is about 0.85 kg/l whereas petrol (gasoline) has a density of about 0.72 kg/l, about 15% less


What is thicker fuel oil or petrol?

Fuel oil is thicker than petrol because it has a higher viscosity and density. Fuel oil is used in heating systems and diesel engines, while petrol is used as a fuel for gasoline engines in cars.


Is petrol density higher than water density?

No, the density of petrol is lower than the density of water. Water has a density of 1 g/cm³, while the density of petrol is around 0.75-0.85 g/cm³.


Why does diesel freeze quicker than petrol?

Diesel fuel and petrol/gasoline are similar; both of them are mainly mixtures of hydrocarbons. However, Diesel is considerably less volatile because it the compounds in it are of higher molecular weight; they have a higher boiling point ... and also a higher freezing point.


Does petrol boil at a higher temperature than diesel?

No. I'm not sure of the exact numbers. Petrol will boil off of your hand, while Diesel will not. Try it if you get the chance.


Why disel engine produced higher temp than pertol?

Diesel engines operate at higher temperatures than petrol engines primarily due to their higher compression ratios. The diesel combustion process relies on compression ignition, which generates more heat as air is compressed before fuel is injected. Additionally, diesel fuel has a higher energy density and requires more heat to ignite compared to petrol, contributing to the overall higher combustion temperatures in diesel engines. These factors result in more efficient energy conversion but also mean that diesel engines typically run hotter.


Which is more viscous diesel or petrol?

Diesel has a much higher viscosity than petrol (gasoline). It is less refined and contains more oil to lubricate and cool the combustion chamber in a diesel engine.


Why mechanical efficiency of diesel engine is greater than petrol engine?

The mechanical efficiency of diesel engines is generally greater than that of petrol engines due to several factors. Diesel engines operate at higher compression ratios, which leads to better thermal efficiency and more complete combustion of fuel. Additionally, diesel fuel has a higher energy density and lower volatility compared to petrol, allowing for more efficient energy conversion. Furthermore, the inherent design of diesel engines, which often features simpler components and less throttling during operation, contributes to their overall mechanical efficiency.


Why is petrol rate costlier than diesel?

Diesel and petrol engines work differently. Diesel engines use compression to ignite the air/fuel mixture, and have a much higher compression ratio than petrol engines, which use spark ignition. The conditions for ignition are not met when petrol is put into a diesel engine, and will stall.