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Sourav Asked a Question
August 20, 2020 2:19 ampts 30 pts
  • IIT JAM
  • Chemistry (CY)

Helmholtz free energy the function that is particularly applicable to constant volume process is introduced, as c helmholtz free energy. it is denoted by 'a' a-

Can someone explain me how dA = - W. In general from first law we have du=q+ w but here it is taken du =q-W.. Why?
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  • Priyanshu kumar Best Answer
    Read this sourav👇 So in this equation we use Del U= qrev -Wrev
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    Priyanshu kumar
    This basically changes accordingly how work is defined in a process...So don't be confuse in using this check whether work is done by a system or work is done on the system
  • Dinesh khalmaniya thankyou
    in physics we take delta E =q - w ( because work done by the system so w =-ve) while in chemistry we take delta E = q + w ( here work done on the system so w= +ve) so both the expr...
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  • Dinesh khalmaniya
    check it for more details
    • 0ae62e86b7409cb7c6b4997da1d7acda.jpg
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  • Dinesh khalmaniya
    hope this will help you 🙏🙏
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