Finding how much heat released by evaporation of water

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Homework Help Overview

The discussion revolves around understanding the heat dynamics involved in the evaporation of water, particularly in the context of a specific power output of 120W. Participants are exploring the relationship between heat absorption and evaporation, especially in relation to the human body.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants question the origin of the 120W figure and seek additional context for the problem. There is a discussion about whether evaporation releases heat or requires heat absorption, with some participants reflecting on the role of the human body in this process.

Discussion Status

The conversation is ongoing, with some participants gaining clarity on the context of the 120W figure. There is a mix of interpretations regarding the heat dynamics of evaporation, and no consensus has been reached yet.

Contextual Notes

Some participants note that additional context is necessary to fully understand the problem, particularly regarding the relationship between heat release and absorption during evaporation.

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Homework Statement
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Relevant Equations
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For this,
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Dose anybody please know where they got the 120W from?

Many thanks!
 
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There must be more context to the question.
 
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haruspex said:
There must be more context to the question.
Thank you for your reply @haruspex!

I'm very sorry, but somehow, I missed the slide before. I think I understand where they got the 120W from now.

Thank you for your help!
 
What releases the heat? The water needs to absorb energy in order to evaporate. Evaporation does not release heat.
 
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nasu said:
What releases the heat? The water needs to absorb energy in order to evaporate. Evaporation does not release heat.
Thank you for your reply @nasu!

The question was about the heat released from the human body I recall. So I think the water absorbs the heat from the human.

Many thanks!
 

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