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NEET 2008 Chemistry question

ChemistryElectrochemistryNEET 2008

Standard free energies of formation (in kJ/mol) at 298 K are , and for , and pentane (g) respectively. The value of for the pentane-oxygen fuel cell is

Answer: (4)

Solution

Cell reaction: . Number of electrons transferred: (each C goes from average to ; takes 32 electrons). $Δ G° =

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Question ID VK-090001