Is All Work Mechanical or Are There Alternative Forms?

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Work is not limited to mechanical forms; it can also encompass non-mechanical energy transfers, such as chemical work and heat. The distinction between work and heat lies in the nature of energy transfer, with work being associated with organized energy changes. When discussing total work in a system, it includes all forms of energy changes, such as mechanical work and changes in internal energy. If internal energy change constitutes one-third of the total work, then the total work is indeed the sum of all energy changes. Understanding these concepts is crucial for analyzing energy dynamics in various systems.
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Hello, i have one question about work,
Does work must be mechanical ?
or we can change of some energy that is not mechanical (like internal or chemical)
call work ?
 
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Anonymous119 said:
we can change of some energy that is not mechanical (like internal or chemical) call work ?

Yes. If an energy transfer between two objects is caused by a difference in their temperatures, we call it heat, otherwise we call it work. Chemical work is an example of non-mechanical work.
 
Ok thanks, then i have new question,
If it says that is change of internal energy 1/3 of total work,
in total work i should count sums of every energy changes ?
 
I'm sorry, I don't understand the question. Can you re-phrase it in other words, or quote the problem or text that you're reading?
 
Ok, if it says that change of internal energy is part(for example 1/3) of TOTAL work executed over system(body). Does it mean that is TOTAL work indeed sums of every single work(mechanical work+internal energy change+...) ? If u understand me
 
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Can anyone answer ?
 

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