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Chemistry is just a subset of physics in general. A chemical event is the interaction of electrons of one atom with neighbouring atoms.
For certain such interactions to take place, energy has to be added. Heat causes the molecules of gasoline to break apart and recombine with oxygen in the air. This in turn releases more energy, so the reaction continues around it as long as there is gasoline and oxygen available.
Heat is really just "more frantically moving atoms". With sufficient movement, the energy causes chemical bonds, i.e. the configuration of electrons between atoms, to break or be made.
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∙ 14y ago
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Burning gasoline in a car's engine a physical change or a chemical change?
Chemical but the energy released has physical consequences.
Is the burning of fuel in a car a chemical or physical change?
It would be a chemical change because it is burning. Like a newspaper on fire.
Is gasoline being used in the engine of a car a chemical change?
Yes, the gasoline is chemically reacting with the oxygen in the atmosphere to create the heat needed to power the car.
What type of change occurs when a car engine consumes gasoline - chemical or physical?
I don't think burning a gas to power a car is either Chemical nor Physical. If you burn gasoline to power a car, it is therefore a chemical AND physical change because both the chemicals and the look changes. However, a car being powered has nothing to do with the substance of gas being changed. If the car uses the gas to power itself, it'll turn the gas into gas again, so I'm not sure how this works. In conclusion, it's probably neither.
Is crashing a car chemical change?
No, though it is not easily irreversible like chemical reactions it is mainly a physical change, unless your car set in fire. (Burning is chemical)
Is the burning of gasoline in a car a chemical change or physical change?
Answer The burning of gasoline is a chemical change.
Is burning of gasoline in the car a chemical change?
Gasoline burning is an oxidation reaction, a reaction with oxygen.So, burning is a chemical change. And fire was the most important discovery of human beings.
Burning gasoline in a car's engine a physical change or a chemical change?
Chemical but the energy released has physical consequences.
What activity depends on a chemical change happening?
burning gasoline in a car engine
Is the burning of fuel in a car a chemical or physical change?
It would be a chemical change because it is burning. Like a newspaper on fire.
Is gasoline being used in the engine of a car a chemical change?
Yes, the gasoline is chemically reacting with the oxygen in the atmosphere to create the heat needed to power the car.
What types of energy transformation are occurring when a car is burning gasoline?
Chemical energy to mechanical energy
What type of matter change occurs when gasoline is burned in a car?
it is a chemical change! (sexy right?;)
How many CFC's are produced by a car?
None at all. CFCs are a chemical compound not a byproduct of the burning of gasoline or diesel.
What type of change occurs when a car engine consumes gasoline - chemical or physical?
I don't think burning a gas to power a car is either Chemical nor Physical. If you burn gasoline to power a car, it is therefore a chemical AND physical change because both the chemicals and the look changes. However, a car being powered has nothing to do with the substance of gas being changed. If the car uses the gas to power itself, it'll turn the gas into gas again, so I'm not sure how this works. In conclusion, it's probably neither.
Is crashing a car chemical change?
No, though it is not easily irreversible like chemical reactions it is mainly a physical change, unless your car set in fire. (Burning is chemical)
How is starting a car a chemical reaction?
Because fuel is burned. Burning breaks down the chemical bonds of the fuel releasing some elements and making other chemical bonds.
