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daymakenna3
25.09.2019 •
Chemistry
When an electric kettle containing cold water is switched on, the water in it starts boiling after a few minutes. what is the source of the heat energy of the boiling water?
mechanical energy from the power socket
newly created energy that increased the total energy
mechanical energy from the heating element in the kettle
already existing energy that was present in some other form
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Ответ:
Newly created energy that increased the total energy
Explanation:
The energy existed before, but not in the system, it is entering the system as soon as you turn on the kettle this means that the kettle is experimenting an electric current on the resistance that has touching the water, this electric energy is being converted into heat energy and heating up the water in the kettle.
Ответ:
It is transformed into electrical energy.
Explanation:
Ответ: