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Consider the DeltaG(f)^(0) and Delta H(f...

Consider the `DeltaG_(f)^(0) and Delta H_(f)^(0)` (kJ/mol) for the following oxides. Which oxide can be most easily decomposed to form the metal and oxygen gas?

A

`ZnO(DeltaG^(@)=-318.4, DeltaH^(@)=-348.3)`

B

`Cu_(2)O(DeltaG^(@)=-146.0, DeltaH^(@)=-168.8)`

C

`HgO(DeltaG^(@)=-58.5, DeltaH^(@)=-90.8)`

D

`PbO(DeltaG^(@)=-187.9, DeltaH^(@)=-217.3)`

Text Solution

Verified by Experts

The correct Answer is:
C
`DeltaG^(@)=-RTlnK, " K"uarr"stability of reactant"darr`
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