How is energy released from fossil fuels answers?
How is energy released from fossil fuels answers?
Energy gained from burning fossil fuels is converted to electricity and heat in commercial power plants. During this reaction heat is released which further amplifies the reaction. Electricity is generated by transforming mechanical energy (heat) to electrical energy in a turbine or generator.
What type of energy does gasoline have?
chemical potential energy
Answer and Explanation: Gasoline contains chemical potential energy. The energy stored in the bonds of the hydrocarbons are released when it is ignited.
What kind of energy is released when gasoline is burned?
It is important to note that the theoretical energy content of gasoline. when burned in air is only related to the hydrogen and carbon contents. The energy is released when the hydrogen and carbon are oxidised (burnt), to form water and carbon dioxide.
Where does the energy go in a gasoline engine?
In gasoline-powered vehicles, most of the fuel’s energy is lost in the engine, primarily as heat. Smaller amounts of energy are lost through engine friction, pumping air into and out of the engine, and combustion inefficiency.
How much energy is released in a gallon of petrol?
The energy content of petrol is about 120 MJ/gal. Since 1 gallon contains 3.78 lts, so the given case: 120/3.78 MJ = 31.75 MJ energy will be released on complete combustion of 1 lt of petrol.
How is energy released during a chemical reaction?
During chemical reactions, energy is either released to the environment (exothermic reaction) or absorbed from the environment (endothermic reaction). During chemical reactions, bonds are broken in the reactants and new ones are made in the products. Bond-breaking is an endothermic process and bond-making is an exothermic process.
It is important to note that the theoretical energy content of gasoline. when burned in air is only related to the hydrogen and carbon contents. The energy is released when the hydrogen and carbon are oxidised (burnt), to form water and carbon dioxide.
How to calculate the energy released from fuel?
energy released (kJ) = 45 (kJ g -1) × 160 (g) = 7 200 kJ We can rearrange this equation by dividing both sides of the equation by the heat content of the fuel in order to calculate the mass of fuel required to produce a particular amount of energy:
In gasoline-powered vehicles, most of the fuel’s energy is lost in the engine, primarily as heat. Smaller amounts of energy are lost through engine friction, pumping air into and out of the engine, and combustion inefficiency.
Why does petroleum release more energy than other fuels?
The more hydrogen per carbon, the lower the oxidation state and the more energy that will be released during the oxidation reaction. Thus the greater the H/C ratio, the more energy release on combustion. Petroleum has a large saturated hydrocarbons content.
