1.

Standard free energies of formation (in kJ/mol) at 298 K are 237.2, -394.4 and -8.2 for H_(2)O(l),CO_(2)(g) and pentane (g), respectively. The value of E_(cell)^(o) for the pentane-oxygen fuel cell is

Answer»

1.0968V
0.0968
1.968V
2.0968V

Solution :`C_(5)H_(12)+8O_(2)to5CO_(2)+6H_(2)O`
`DELTAG^(@)=-5xx394.4-6xx237.2+8.2`
`DeltaG^(@)=-nFE_(Cell)^(@)`
`-3387kJ//`MOLE


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