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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Thermodynamics
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Which of the following is not spontaneous?

$\begin {array} {1 1} (A)\;\text{dissolution of copper sulphate in water}\\ (B)\;\text{reaction between hydrogen and oxygen to form water} \\ (C)\;\text{water flowing downhill}\\ (D)\;\text{flow of current from low potential to high potential} \end {array}$

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Current always flows from high to low potential
Ans : (D)
answered Mar 15, 2014 by thanvigandhi_1

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