Respuesta :
Answer:
Because the chemical energy is converted to electrical enegy in the cell phone
Explanation:
This set up is not a voilation of the first law of thermodynamics because the chemical energy is not lost, it is only being transformed into electrical energy.
According to the first law of thermodynamics "energy is neither created nor destroyed but transformed from one form to another".
- In a charged cell phone, the chemical energy is being transformed to electrical energy as you use it.
- A phone cannot directly be powered with chemical energy.
- The energy transformation to electrical energy makes it possible to use the phone.
- In this process no energy is lost nor created. But simply, energy is transformed.
It does not violate the first law of thermodynamics as the energy is being converted from one form to another.
Conversion of energy:
As we use our phones, the amount of chemical energy in the battery decreases. But it is not a violation of the first law of thermodynamics.
- It may seem like the first law of thermodynamics is being violated here as the chemical energy of the cell is decreasing but that's not the case.
- It is because the chemical energy in the battery is being converted into electrical energy.
- There is no energy being created or lost here. It is a simple conversion of energy from one form to another.
- The conservation of energy is being followed as the loss of chemical energy is equal to the gain in electrical energy of the system.
Learn more about energy conversion:
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