Calculating Heat Absorption: Liquid Water at 100°C on a Human Hand

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Homework Help Overview

The discussion revolves around calculating the heat absorbed by a person's hand when 100 grams of liquid water at 100°C is poured onto it, with the water expected to cool to a final temperature of 37°C.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • One participant suggests reframing the question to focus on the energy released by the water as it cools from 100°C to 37°C. Others inquire about the energy change per gram of water for a temperature change of 1°C.

Discussion Status

The discussion is in an exploratory phase, with participants questioning the original problem setup and considering alternative ways to approach the heat transfer involved.

Contextual Notes

Some participants note a lack of original wording in the problem statement, indicating that the question may have been directly copied from homework without personal input.

ozziegolf05
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Homework Statement



How much heat is absorbed by a person’s hand if 100 grams of liquid water at 100°C is poured on his hand? (Assume the final temperature of the water will be normal body temperature of 37°C)


Homework Equations


dont have any


The Attempt at a Solution


dont have one.
 
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The water changes temperature. So maybe a better question to ask is how much energy is released by 100 g of water when it changes from 100o to 37o C? :wink:
 
i just copied and pasted this question from my homework. i didnt word it
 
ozziegolf05 said:
i just copied and pasted this question from my homework. i didnt word it

Okay. :cool:

Then how much energy is released from 1 gram of water when it changes 1o C?
 

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