Cup on a table, heat or work process?

AI Thread Summary
The discussion revolves around a scenario where a cup of water increases in temperature from 20 degrees Celsius to 25 degrees Celsius after being left on a table for 10 minutes. Participants explore whether this temperature change is due to heat transfer from the environment or if it involves work being done. The mention of a "trick question" suggests that the answer may not be straightforward, prompting further analysis. One contributor believes the temperature rise is primarily due to heat transfer, while expressing confusion about the trick aspect. The conversation highlights the complexities of thermodynamic processes in everyday situations.
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Homework Statement



A cup sitting on the table contains 200g of water. You measure it at a certain time and it is 20 degrees Celsius. You leave the room and come back 10 minutes later. It is now 25 degrees Celsius. What can you conclude about the heat added to the water? [hint trick question]

Homework Equations





The Attempt at a Solution



My attempt is that I believe this is still heat transfer between a warmer environment and a colder cup. The fact that it says a trick question makes me wonder. Is this actually work being done?
 
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I don't see a trick!
 

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