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hopes (2)

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Olaaa!! Perrrfect answer. 0  [1 rates]

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I think it is the other way round! in physics it is:

on the system: +ve
by the sys:-ve

and chem the other way round! I am not sure just confirming.
And if it is as I hv suggested then my explanation would be..... In phy i am concerned abt the system only but in chem i am also concerned with the surrounding.Just notify me if my sign conventions are wrong!
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