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Short answer Yes. Petrol is useful for running a engine, and extremely dangerous if misused.
The engine will not run without a supply of petrol so you would think it is useful.
The engine will not run without a supply of petrol so you would think it is useful.
Petrol is British name for Gasoline
Yes, the energy output of an engine is governed by the chemical potential energy of the fuels. Assuming that the extra potential energy could be turned into useful work, there would be an energy advantage of diesel over petrol.
Well petrol is short for petroleum which is Gasoline! so unless your car runs on anything thing else i'd say its usefuL!
the carbon dioxide which comes from the burned petrol of cars is definitely harmful if you directly breathe it in, but not really harmful otherwise
The total amount of energy doesn't change. However, some useful energy will be converted into unusable energy.The total amount of energy doesn't change. However, some useful energy will be converted into unusable energy.The total amount of energy doesn't change. However, some useful energy will be converted into unusable energy.The total amount of energy doesn't change. However, some useful energy will be converted into unusable energy.
The energy in a closed system is constant, which is the principle of Conservation of Energy, but in machines the amount of useful energy coming out is less than the amount going in. This is explained by lost energy. In a petrol engine the lost energy comes out in the form of heat because the engine block is hot, which happens because of friction in the bearings but also because the gas in the cylinder has to be at a high temperature and pressure.
Free energy
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