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DeltaG for the reaction : (4)/(3) Al+...

`DeltaG` for the reaction `:`
`(4)/(3) Al+O_(2)rarr (2)/(3)Al_(2)O_(3)`
is `-772 kJ mol^(-1)` of `O_(2)`.
Calculate the minimum `EMF` in volts required to carry out an electrolysis of `Al_(2)O_(3)`

A

`Delta H_(1)=DeltaH_(2)`

B

`Delta H_(1) gt Delta H_(2)`

C

`Delta H_(1) lt Delta H_(2)`

D

`DeltaH_(1)=DeltaH_(2)+Delta_(vap)H(C )+Delta_(diss)H(H_(2))`

Text Solution

Verified by Experts

The correct Answer is:
B
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