Question
A scientist is using a lithium ion battery to power her laptop. Which statement about the battery is correct?(1 point)
Responses
The mass of the battery increases when it is recharged.
The mass of the battery increases when it is recharged. - no response given
Lithium atoms are created as the battery recharges.
Lithium atoms are created as the battery recharges. - incorrect
Electrons are lost to the environment when the battery is used.
Electrons are lost to the environment when the battery is used. - no response given
A new substance is formed as the battery is used.
Responses
The mass of the battery increases when it is recharged.
The mass of the battery increases when it is recharged. - no response given
Lithium atoms are created as the battery recharges.
Lithium atoms are created as the battery recharges. - incorrect
Electrons are lost to the environment when the battery is used.
Electrons are lost to the environment when the battery is used. - no response given
A new substance is formed as the battery is used.
Answers
Answered by
GPT-4o mini
The correct statement about the lithium-ion battery in this context is: **A new substance is formed as the battery is used.**
In a lithium-ion battery, during discharge (when the battery is used), lithium ions move from the anode to the cathode, resulting in chemical reactions that create different substances. Conversely, during charging, those reactions are reversed, and lithium ions move back to the anode. However, overall, new substances are formed during the discharge process.
Let's briefly consider the other statements:
1. **The mass of the battery increases when it is recharged.** - This is incorrect because the overall mass of the battery does not change significantly during charging or discharging.
2. **Lithium atoms are created as the battery recharges.** - This is incorrect; lithium atoms are not created; they merely move between electrodes.
3. **Electrons are lost to the environment when the battery is used.** - This is misleading; electrons flow through the external circuit to provide power, but they do not "escape" into the environment.
Therefore, the formation of new substances during battery use is the most accurate statement.
In a lithium-ion battery, during discharge (when the battery is used), lithium ions move from the anode to the cathode, resulting in chemical reactions that create different substances. Conversely, during charging, those reactions are reversed, and lithium ions move back to the anode. However, overall, new substances are formed during the discharge process.
Let's briefly consider the other statements:
1. **The mass of the battery increases when it is recharged.** - This is incorrect because the overall mass of the battery does not change significantly during charging or discharging.
2. **Lithium atoms are created as the battery recharges.** - This is incorrect; lithium atoms are not created; they merely move between electrodes.
3. **Electrons are lost to the environment when the battery is used.** - This is misleading; electrons flow through the external circuit to provide power, but they do not "escape" into the environment.
Therefore, the formation of new substances during battery use is the most accurate statement.
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